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Finding the Fourth Proportional to 29,892.72, 44,817.12 and 14,321.28

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Solution

The fourth proportional to 29,892.72, 44,817.12 and 14,321.28 is: 21,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,892.72 : 44,817.12 = 14,321.28 : x
  2. Step 2: Convert to fraction form
    29,892.72/44,817.12 = 14,321.28/x
  3. Step 3: Cross multiply
    29,892.72x = 44,817.12 × 14,321.28
  4. Step 4: Simplify right side
    29,892.72x = 641,838,524.31
  5. Step 5: Solve for x
    x = 641,838,524.31/29,892.72
  6. Step 6: Final answer
    x = 21,471.40

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1.5x scale

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.