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Finding the Fourth Proportional to 67,948.88, 93,771.07 and 38,140.88

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Solution

The fourth proportional to 67,948.88, 93,771.07 and 38,140.88 is: 52,635.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,948.88 : 93,771.07 = 38,140.88 : x
  2. Step 2: Convert to fraction form
    67,948.88/93,771.07 = 38,140.88/x
  3. Step 3: Cross multiply
    67,948.88x = 93,771.07 × 38,140.88
  4. Step 4: Simplify right side
    67,948.88x = 3,576,510,564.13
  5. Step 5: Solve for x
    x = 3,576,510,564.13/67,948.88
  6. Step 6: Final answer
    x = 52,635.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.