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Finding the Fourth Proportional to 51,551.80, 71,175.76 and 39,593.76

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Solution

The fourth proportional to 51,551.80, 71,175.76 and 39,593.76 is: 54,665.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,551.80 : 71,175.76 = 39,593.76 : x
  2. Step 2: Convert to fraction form
    51,551.80/71,175.76 = 39,593.76/x
  3. Step 3: Cross multiply
    51,551.80x = 71,175.76 × 39,593.76
  4. Step 4: Simplify right side
    51,551.80x = 2,818,115,959.26
  5. Step 5: Solve for x
    x = 2,818,115,959.26/51,551.80
  6. Step 6: Final answer
    x = 54,665.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.