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Finding the Fourth Proportional to 29,487.16, 44,244.90 and 18,391

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Solution

The fourth proportional to 29,487.16, 44,244.90 and 18,391 is: 27,595.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,487.16 : 44,244.90 = 18,391 : x
  2. Step 2: Convert to fraction form
    29,487.16/44,244.90 = 18,391/x
  3. Step 3: Cross multiply
    29,487.16x = 44,244.90 × 18,391
  4. Step 4: Simplify right side
    29,487.16x = 813,707,955.90
  5. Step 5: Solve for x
    x = 813,707,955.90/29,487.16
  6. Step 6: Final answer
    x = 27,595.33

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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.