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Finding the Fourth Proportional to 16,905,553.92, 25,357,393.92 and 12,361,259.52

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Solution

The fourth proportional to 16,905,553.92, 25,357,393.92 and 12,361,259.52 is: 18,541,204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905,553.92 : 25,357,393.92 = 12,361,259.52 : x
  2. Step 2: Convert to fraction form
    16,905,553.92/25,357,393.92 = 12,361,259.52/x
  3. Step 3: Cross multiply
    16,905,553.92x = 25,357,393.92 × 12,361,259.52
  4. Step 4: Simplify right side
    16,905,553.92x = 313,449,326,995,990.12
  5. Step 5: Solve for x
    x = 313,449,326,995,990.12/16,905,553.92
  6. Step 6: Final answer
    x = 18,541,204.18

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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.