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Finding the Fourth Proportional to 71,515.55, 107,332.33 and 35,986.96

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Solution

The fourth proportional to 71,515.55, 107,332.33 and 35,986.96 is: 54,010.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,515.55 : 107,332.33 = 35,986.96 : x
  2. Step 2: Convert to fraction form
    71,515.55/107,332.33 = 35,986.96/x
  3. Step 3: Cross multiply
    71,515.55x = 107,332.33 × 35,986.96
  4. Step 4: Simplify right side
    71,515.55x = 3,862,564,378.09
  5. Step 5: Solve for x
    x = 3,862,564,378.09/71,515.55
  6. Step 6: Final answer
    x = 54,010.14

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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.