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Finding the Fourth Proportional to 84,398.90, 126,614.76 and 25,233.26

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Solution

The fourth proportional to 84,398.90, 126,614.76 and 25,233.26 is: 37,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,398.90 : 126,614.76 = 25,233.26 : x
  2. Step 2: Convert to fraction form
    84,398.90/126,614.76 = 25,233.26/x
  3. Step 3: Cross multiply
    84,398.90x = 126,614.76 × 25,233.26
  4. Step 4: Simplify right side
    84,398.90x = 3,194,903,158.92
  5. Step 5: Solve for x
    x = 3,194,903,158.92/84,398.90
  6. Step 6: Final answer
    x = 37,854.80

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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.