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Finding the Fourth Proportional to 38,098.56, 57,120.15 and 15,918.28

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Solution

The fourth proportional to 38,098.56, 57,120.15 and 15,918.28 is: 23,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,098.56 : 57,120.15 = 15,918.28 : x
  2. Step 2: Convert to fraction form
    38,098.56/57,120.15 = 15,918.28/x
  3. Step 3: Cross multiply
    38,098.56x = 57,120.15 × 15,918.28
  4. Step 4: Simplify right side
    38,098.56x = 909,254,358.75
  5. Step 5: Solve for x
    x = 909,254,358.75/38,098.56
  6. Step 6: Final answer
    x = 23,865.85

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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.