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Finding the Fourth Proportional to 57,087.48, 85,631.22 and 15,534.48

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Solution

The fourth proportional to 57,087.48, 85,631.22 and 15,534.48 is: 23,301.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087.48 : 85,631.22 = 15,534.48 : x
  2. Step 2: Convert to fraction form
    57,087.48/85,631.22 = 15,534.48/x
  3. Step 3: Cross multiply
    57,087.48x = 85,631.22 × 15,534.48
  4. Step 4: Simplify right side
    57,087.48x = 1,330,236,474.47
  5. Step 5: Solve for x
    x = 1,330,236,474.47/57,087.48
  6. Step 6: Final answer
    x = 23,301.72

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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.