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Finding the Fourth Proportional to 92,215.80, 138,324.24 and 25,660.80

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Solution

The fourth proportional to 92,215.80, 138,324.24 and 25,660.80 is: 38,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,215.80 : 138,324.24 = 25,660.80 : x
  2. Step 2: Convert to fraction form
    92,215.80/138,324.24 = 25,660.80/x
  3. Step 3: Cross multiply
    92,215.80x = 138,324.24 × 25,660.80
  4. Step 4: Simplify right side
    92,215.80x = 3,549,510,657.79
  5. Step 5: Solve for x
    x = 3,549,510,657.79/92,215.80
  6. Step 6: Final answer
    x = 38,491.35

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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.