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Finding the Fourth Proportional to 7,385,401.90, 11,078,102.85 and 7,385,401.90

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Solution

The fourth proportional to 7,385,401.90, 11,078,102.85 and 7,385,401.90 is: 11,078,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385,401.90 : 11,078,102.85 = 7,385,401.90 : x
  2. Step 2: Convert to fraction form
    7,385,401.90/11,078,102.85 = 7,385,401.90/x
  3. Step 3: Cross multiply
    7,385,401.90x = 11,078,102.85 × 7,385,401.90
  4. Step 4: Simplify right side
    7,385,401.90x = 81,816,241,836,785.42
  5. Step 5: Solve for x
    x = 81,816,241,836,785.42/7,385,401.90
  6. Step 6: Final answer
    x = 11,078,102.85

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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.