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Finding the Fourth Proportional to 40,752.57, 61,117.01 and 15,787.05

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Solution

The fourth proportional to 40,752.57, 61,117.01 and 15,787.05 is: 23,675.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,752.57 : 61,117.01 = 15,787.05 : x
  2. Step 2: Convert to fraction form
    40,752.57/61,117.01 = 15,787.05/x
  3. Step 3: Cross multiply
    40,752.57x = 61,117.01 × 15,787.05
  4. Step 4: Simplify right side
    40,752.57x = 964,857,213.79
  5. Step 5: Solve for x
    x = 964,857,213.79/40,752.57
  6. Step 6: Final answer
    x = 23,675.98

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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.