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Finding the Fourth Proportional to 71,248.56, 106,860.96 and 26,261.16

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Solution

The fourth proportional to 71,248.56, 106,860.96 and 26,261.16 is: 39,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,248.56 : 106,860.96 = 26,261.16 : x
  2. Step 2: Convert to fraction form
    71,248.56/106,860.96 = 26,261.16/x
  3. Step 3: Cross multiply
    71,248.56x = 106,860.96 × 26,261.16
  4. Step 4: Simplify right side
    71,248.56x = 2,806,292,768.31
  5. Step 5: Solve for x
    x = 2,806,292,768.31/71,248.56
  6. Step 6: Final answer
    x = 39,387.36

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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.