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Finding the Fourth Proportional to 8,766,314.60, 13,149,471.90 and 7,814,532.20

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Solution

The fourth proportional to 8,766,314.60, 13,149,471.90 and 7,814,532.20 is: 11,721,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766,314.60 : 13,149,471.90 = 7,814,532.20 : x
  2. Step 2: Convert to fraction form
    8,766,314.60/13,149,471.90 = 7,814,532.20/x
  3. Step 3: Cross multiply
    8,766,314.60x = 13,149,471.90 × 7,814,532.20
  4. Step 4: Simplify right side
    8,766,314.60x = 102,756,971,575,545.19
  5. Step 5: Solve for x
    x = 102,756,971,575,545.19/8,766,314.60
  6. Step 6: Final answer
    x = 11,721,798.30

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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.