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Finding the Fourth Proportional to 65,833.92, 90,913.55 and 62,247.51

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Solution

The fourth proportional to 65,833.92, 90,913.55 and 62,247.51 is: 85,960.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,833.92 : 90,913.55 = 62,247.51 : x
  2. Step 2: Convert to fraction form
    65,833.92/90,913.55 = 62,247.51/x
  3. Step 3: Cross multiply
    65,833.92x = 90,913.55 × 62,247.51
  4. Step 4: Simplify right side
    65,833.92x = 5,659,141,801.52
  5. Step 5: Solve for x
    x = 5,659,141,801.52/65,833.92
  6. Step 6: Final answer
    x = 85,960.88

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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.