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Finding the Fourth Proportional to 71,700.18, 107,453.39 and 27,302.72

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Solution

The fourth proportional to 71,700.18, 107,453.39 and 27,302.72 is: 40,917.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,700.18 : 107,453.39 = 27,302.72 : x
  2. Step 2: Convert to fraction form
    71,700.18/107,453.39 = 27,302.72/x
  3. Step 3: Cross multiply
    71,700.18x = 107,453.39 × 27,302.72
  4. Step 4: Simplify right side
    71,700.18x = 2,933,769,820.22
  5. Step 5: Solve for x
    x = 2,933,769,820.22/71,700.18
  6. Step 6: Final answer
    x = 40,917.19

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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.