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Finding the Fourth Proportional to 8,393,463.90, 12,590,195.85 and 8,393,463.90

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Solution

The fourth proportional to 8,393,463.90, 12,590,195.85 and 8,393,463.90 is: 12,590,195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393,463.90 : 12,590,195.85 = 8,393,463.90 : x
  2. Step 2: Convert to fraction form
    8,393,463.90/12,590,195.85 = 8,393,463.90/x
  3. Step 3: Cross multiply
    8,393,463.90x = 12,590,195.85 × 8,393,463.90
  4. Step 4: Simplify right side
    8,393,463.90x = 105,675,354,360,904.81
  5. Step 5: Solve for x
    x = 105,675,354,360,904.81/8,393,463.90
  6. Step 6: Final answer
    x = 12,590,195.85

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.