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Finding the Fourth Proportional to 85,076.66, 127,577.98 and 25,898.47

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Solution

The fourth proportional to 85,076.66, 127,577.98 and 25,898.47 is: 38,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.66 : 127,577.98 = 25,898.47 : x
  2. Step 2: Convert to fraction form
    85,076.66/127,577.98 = 25,898.47/x
  3. Step 3: Cross multiply
    85,076.66x = 127,577.98 × 25,898.47
  4. Step 4: Simplify right side
    85,076.66x = 3,304,074,487.69
  5. Step 5: Solve for x
    x = 3,304,074,487.69/85,076.66
  6. Step 6: Final answer
    x = 38,836.44

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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.