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Finding the Fourth Proportional to 44,385.54, 66,581.64 and 13,988.04

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Solution

The fourth proportional to 44,385.54, 66,581.64 and 13,988.04 is: 20,983.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,385.54 : 66,581.64 = 13,988.04 : x
  2. Step 2: Convert to fraction form
    44,385.54/66,581.64 = 13,988.04/x
  3. Step 3: Cross multiply
    44,385.54x = 66,581.64 × 13,988.04
  4. Step 4: Simplify right side
    44,385.54x = 931,346,643.59
  5. Step 5: Solve for x
    x = 931,346,643.59/44,385.54
  6. Step 6: Final answer
    x = 20,983.11

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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.