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Finding the Fourth Proportional to 44,462.64, 66,712.68 and 19,489.80

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Solution

The fourth proportional to 44,462.64, 66,712.68 and 19,489.80 is: 29,242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,462.64 : 66,712.68 = 19,489.80 : x
  2. Step 2: Convert to fraction form
    44,462.64/66,712.68 = 19,489.80/x
  3. Step 3: Cross multiply
    44,462.64x = 66,712.68 × 19,489.80
  4. Step 4: Simplify right side
    44,462.64x = 1,300,216,790.66
  5. Step 5: Solve for x
    x = 1,300,216,790.66/44,462.64
  6. Step 6: Final answer
    x = 29,242.91

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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.