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Finding the Fourth Proportional to 60,422.70, 90,666.45 and 25,365.90

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Solution

The fourth proportional to 60,422.70, 90,666.45 and 25,365.90 is: 38,062.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,422.70 : 90,666.45 = 25,365.90 : x
  2. Step 2: Convert to fraction form
    60,422.70/90,666.45 = 25,365.90/x
  3. Step 3: Cross multiply
    60,422.70x = 90,666.45 × 25,365.90
  4. Step 4: Simplify right side
    60,422.70x = 2,299,836,104.06
  5. Step 5: Solve for x
    x = 2,299,836,104.06/60,422.70
  6. Step 6: Final answer
    x = 38,062.45

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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.