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Finding the Fourth Proportional to 83,573.78, 125,360.92 and 21,244.28

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Solution

The fourth proportional to 83,573.78, 125,360.92 and 21,244.28 is: 31,866.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,573.78 : 125,360.92 = 21,244.28 : x
  2. Step 2: Convert to fraction form
    83,573.78/125,360.92 = 21,244.28/x
  3. Step 3: Cross multiply
    83,573.78x = 125,360.92 × 21,244.28
  4. Step 4: Simplify right side
    83,573.78x = 2,663,202,485.54
  5. Step 5: Solve for x
    x = 2,663,202,485.54/83,573.78
  6. Step 6: Final answer
    x = 31,866.48

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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.