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Finding the Fourth Proportional to 57,151.98, 85,735.26 and 17,711.46

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Solution

The fourth proportional to 57,151.98, 85,735.26 and 17,711.46 is: 26,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,151.98 : 85,735.26 = 17,711.46 : x
  2. Step 2: Convert to fraction form
    57,151.98/85,735.26 = 17,711.46/x
  3. Step 3: Cross multiply
    57,151.98x = 85,735.26 × 17,711.46
  4. Step 4: Simplify right side
    57,151.98x = 1,518,496,628.08
  5. Step 5: Solve for x
    x = 1,518,496,628.08/57,151.98
  6. Step 6: Final answer
    x = 26,569.45

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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.