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Finding the Fourth Proportional to 25,043.86, 34,560.54 and 15,612.46

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Solution

The fourth proportional to 25,043.86, 34,560.54 and 15,612.46 is: 21,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,043.86 : 34,560.54 = 15,612.46 : x
  2. Step 2: Convert to fraction form
    25,043.86/34,560.54 = 15,612.46/x
  3. Step 3: Cross multiply
    25,043.86x = 34,560.54 × 15,612.46
  4. Step 4: Simplify right side
    25,043.86x = 539,575,048.33
  5. Step 5: Solve for x
    x = 539,575,048.33/25,043.86
  6. Step 6: Final answer
    x = 21,545.20

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