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Finding the Fourth Proportional to 8,959,062.80, 13,438,642.80 and 2,227,476.80

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Solution

The fourth proportional to 8,959,062.80, 13,438,642.80 and 2,227,476.80 is: 3,341,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959,062.80 : 13,438,642.80 = 2,227,476.80 : x
  2. Step 2: Convert to fraction form
    8,959,062.80/13,438,642.80 = 2,227,476.80/x
  3. Step 3: Cross multiply
    8,959,062.80x = 13,438,642.80 × 2,227,476.80
  4. Step 4: Simplify right side
    8,959,062.80x = 29,934,265,060,487.04
  5. Step 5: Solve for x
    x = 29,934,265,060,487.04/8,959,062.80
  6. Step 6: Final answer
    x = 3,341,227.28

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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.