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Finding the Fourth Proportional to 57,237.90, 85,856.85 and 15,117.90

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Solution

The fourth proportional to 57,237.90, 85,856.85 and 15,117.90 is: 22,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,237.90 : 85,856.85 = 15,117.90 : x
  2. Step 2: Convert to fraction form
    57,237.90/85,856.85 = 15,117.90/x
  3. Step 3: Cross multiply
    57,237.90x = 85,856.85 × 15,117.90
  4. Step 4: Simplify right side
    57,237.90x = 1,297,975,272.62
  5. Step 5: Solve for x
    x = 1,297,975,272.62/57,237.90
  6. Step 6: Final answer
    x = 22,676.85

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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.