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Finding the Fourth Proportional to 28,792.64, 43,188.96 and 16,472

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Solution

The fourth proportional to 28,792.64, 43,188.96 and 16,472 is: 24,708

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,792.64 : 43,188.96 = 16,472 : x
  2. Step 2: Convert to fraction form
    28,792.64/43,188.96 = 16,472/x
  3. Step 3: Cross multiply
    28,792.64x = 43,188.96 × 16,472
  4. Step 4: Simplify right side
    28,792.64x = 711,408,549.12
  5. Step 5: Solve for x
    x = 711,408,549.12/28,792.64
  6. Step 6: Final answer
    x = 24,708

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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.