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Finding the Fourth Proportional to 15,986,407.86, 22,059,909.24 and 9,016,701.30

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Solution

The fourth proportional to 15,986,407.86, 22,059,909.24 and 9,016,701.30 is: 12,442,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986,407.86 : 22,059,909.24 = 9,016,701.30 : x
  2. Step 2: Convert to fraction form
    15,986,407.86/22,059,909.24 = 9,016,701.30/x
  3. Step 3: Cross multiply
    15,986,407.86x = 22,059,909.24 × 9,016,701.30
  4. Step 4: Simplify right side
    15,986,407.86x = 198,907,612,322,190
  5. Step 5: Solve for x
    x = 198,907,612,322,190/15,986,407.86
  6. Step 6: Final answer
    x = 12,442,295.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.