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Finding the Fourth Proportional to 83,472.48, 125,121.24 and 30,848.40

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Solution

The fourth proportional to 83,472.48, 125,121.24 and 30,848.40 is: 46,240.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,472.48 : 125,121.24 = 30,848.40 : x
  2. Step 2: Convert to fraction form
    83,472.48/125,121.24 = 30,848.40/x
  3. Step 3: Cross multiply
    83,472.48x = 125,121.24 × 30,848.40
  4. Step 4: Simplify right side
    83,472.48x = 3,859,790,060.02
  5. Step 5: Solve for x
    x = 3,859,790,060.02/83,472.48
  6. Step 6: Final answer
    x = 46,240.27

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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.