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Finding the Fourth Proportional to 16,643,542.80, 24,968,046.60 and 5,129,012.10

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Solution

The fourth proportional to 16,643,542.80, 24,968,046.60 and 5,129,012.10 is: 7,694,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643,542.80 : 24,968,046.60 = 5,129,012.10 : x
  2. Step 2: Convert to fraction form
    16,643,542.80/24,968,046.60 = 5,129,012.10/x
  3. Step 3: Cross multiply
    16,643,542.80x = 24,968,046.60 × 5,129,012.10
  4. Step 4: Simplify right side
    16,643,542.80x = 128,061,413,124,763.86
  5. Step 5: Solve for x
    x = 128,061,413,124,763.86/16,643,542.80
  6. Step 6: Final answer
    x = 7,694,360.19

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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.