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Finding the Fourth Proportional to 84,777.66, 127,167.70 and 25,613.84

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Solution

The fourth proportional to 84,777.66, 127,167.70 and 25,613.84 is: 38,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,777.66 : 127,167.70 = 25,613.84 : x
  2. Step 2: Convert to fraction form
    84,777.66/127,167.70 = 25,613.84/x
  3. Step 3: Cross multiply
    84,777.66x = 127,167.70 × 25,613.84
  4. Step 4: Simplify right side
    84,777.66x = 3,257,253,120.97
  5. Step 5: Solve for x
    x = 3,257,253,120.97/84,777.66
  6. Step 6: Final answer
    x = 38,421.13

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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.