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Finding the Fourth Proportional to 55,487.40, 83,231.10 and 16,045.80

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Solution

The fourth proportional to 55,487.40, 83,231.10 and 16,045.80 is: 24,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,487.40 : 83,231.10 = 16,045.80 : x
  2. Step 2: Convert to fraction form
    55,487.40/83,231.10 = 16,045.80/x
  3. Step 3: Cross multiply
    55,487.40x = 83,231.10 × 16,045.80
  4. Step 4: Simplify right side
    55,487.40x = 1,335,509,584.38
  5. Step 5: Solve for x
    x = 1,335,509,584.38/55,487.40
  6. Step 6: Final answer
    x = 24,068.70

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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.