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Finding the Fourth Proportional to 67,258.88, 92,812.80 and 38,959.52

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Solution

The fourth proportional to 67,258.88, 92,812.80 and 38,959.52 is: 53,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,258.88 : 92,812.80 = 38,959.52 : x
  2. Step 2: Convert to fraction form
    67,258.88/92,812.80 = 38,959.52/x
  3. Step 3: Cross multiply
    67,258.88x = 92,812.80 × 38,959.52
  4. Step 4: Simplify right side
    67,258.88x = 3,615,942,137.86
  5. Step 5: Solve for x
    x = 3,615,942,137.86/67,258.88
  6. Step 6: Final answer
    x = 53,761.56

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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.