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Finding the Fourth Proportional to 5,432.92, 8,149.70 and 1,537

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Solution

The fourth proportional to 5,432.92, 8,149.70 and 1,537 is: 2,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.92 : 8,149.70 = 1,537 : x
  2. Step 2: Convert to fraction form
    5,432.92/8,149.70 = 1,537/x
  3. Step 3: Cross multiply
    5,432.92x = 8,149.70 × 1,537
  4. Step 4: Simplify right side
    5,432.92x = 12,526,081.22
  5. Step 5: Solve for x
    x = 12,526,081.22/5,432.92
  6. Step 6: Final answer
    x = 2,305.59

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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.