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Finding the Fourth Proportional to 57,117.92, 85,676.88 and 15,571.04

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Solution

The fourth proportional to 57,117.92, 85,676.88 and 15,571.04 is: 23,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,117.92 : 85,676.88 = 15,571.04 : x
  2. Step 2: Convert to fraction form
    57,117.92/85,676.88 = 15,571.04/x
  3. Step 3: Cross multiply
    57,117.92x = 85,676.88 × 15,571.04
  4. Step 4: Simplify right side
    57,117.92x = 1,334,078,125.56
  5. Step 5: Solve for x
    x = 1,334,078,125.56/57,117.92
  6. Step 6: Final answer
    x = 23,356.56

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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.