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Finding the Fourth Proportional to 38,988.92, 53,822.59 and 25,560.74

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Solution

The fourth proportional to 38,988.92, 53,822.59 and 25,560.74 is: 35,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988.92 : 53,822.59 = 25,560.74 : x
  2. Step 2: Convert to fraction form
    38,988.92/53,822.59 = 25,560.74/x
  3. Step 3: Cross multiply
    38,988.92x = 53,822.59 × 25,560.74
  4. Step 4: Simplify right side
    38,988.92x = 1,375,744,896.10
  5. Step 5: Solve for x
    x = 1,375,744,896.10/38,988.92
  6. Step 6: Final answer
    x = 35,285.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.