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Finding the Fourth Proportional to 71,080.44, 98,091.68 and 39,248.64

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Solution

The fourth proportional to 71,080.44, 98,091.68 and 39,248.64 is: 54,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,080.44 : 98,091.68 = 39,248.64 : x
  2. Step 2: Convert to fraction form
    71,080.44/98,091.68 = 39,248.64/x
  3. Step 3: Cross multiply
    71,080.44x = 98,091.68 × 39,248.64
  4. Step 4: Simplify right side
    71,080.44x = 3,849,965,035.32
  5. Step 5: Solve for x
    x = 3,849,965,035.32/71,080.44
  6. Step 6: Final answer
    x = 54,163.49

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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.