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Finding the Fourth Proportional to 8,432.04, 12,640.86 and 4,737

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Solution

The fourth proportional to 8,432.04, 12,640.86 and 4,737 is: 7,101.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.04 : 12,640.86 = 4,737 : x
  2. Step 2: Convert to fraction form
    8,432.04/12,640.86 = 4,737/x
  3. Step 3: Cross multiply
    8,432.04x = 12,640.86 × 4,737
  4. Step 4: Simplify right side
    8,432.04x = 59,879,753.82
  5. Step 5: Solve for x
    x = 59,879,753.82/8,432.04
  6. Step 6: Final answer
    x = 7,101.46

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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.