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Finding the Fourth Proportional to 57,084.48, 85,626.72 and 15,531.48

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Solution

The fourth proportional to 57,084.48, 85,626.72 and 15,531.48 is: 23,297.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,084.48 : 85,626.72 = 15,531.48 : x
  2. Step 2: Convert to fraction form
    57,084.48/85,626.72 = 15,531.48/x
  3. Step 3: Cross multiply
    57,084.48x = 85,626.72 × 15,531.48
  4. Step 4: Simplify right side
    57,084.48x = 1,329,909,689.15
  5. Step 5: Solve for x
    x = 1,329,909,689.15/57,084.48
  6. Step 6: Final answer
    x = 23,297.22

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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.