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Finding the Fourth Proportional to 67,251.16, 92,805.72 and 38,959.48

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Solution

The fourth proportional to 67,251.16, 92,805.72 and 38,959.48 is: 53,763.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,251.16 : 92,805.72 = 38,959.48 : x
  2. Step 2: Convert to fraction form
    67,251.16/92,805.72 = 38,959.48/x
  3. Step 3: Cross multiply
    67,251.16x = 92,805.72 × 38,959.48
  4. Step 4: Simplify right side
    67,251.16x = 3,615,662,592.23
  5. Step 5: Solve for x
    x = 3,615,662,592.23/67,251.16
  6. Step 6: Final answer
    x = 53,763.57

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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.