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Finding the Fourth Proportional to 55,000.71, 82,487.84 and 25,390.10

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Solution

The fourth proportional to 55,000.71, 82,487.84 and 25,390.10 is: 38,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,000.71 : 82,487.84 = 25,390.10 : x
  2. Step 2: Convert to fraction form
    55,000.71/82,487.84 = 25,390.10/x
  3. Step 3: Cross multiply
    55,000.71x = 82,487.84 × 25,390.10
  4. Step 4: Simplify right side
    55,000.71x = 2,094,374,506.38
  5. Step 5: Solve for x
    x = 2,094,374,506.38/55,000.71
  6. Step 6: Final answer
    x = 38,079.04

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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.