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Finding the Fourth Proportional to 8,231,865.80, 12,347,798.70 and 8,074,401.80

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Solution

The fourth proportional to 8,231,865.80, 12,347,798.70 and 8,074,401.80 is: 12,111,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231,865.80 : 12,347,798.70 = 8,074,401.80 : x
  2. Step 2: Convert to fraction form
    8,231,865.80/12,347,798.70 = 8,074,401.80/x
  3. Step 3: Cross multiply
    8,231,865.80x = 12,347,798.70 × 8,074,401.80
  4. Step 4: Simplify right side
    8,231,865.80x = 99,701,088,049,317.66
  5. Step 5: Solve for x
    x = 99,701,088,049,317.66/8,231,865.80
  6. Step 6: Final answer
    x = 12,111,602.70

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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.