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Finding the Fourth Proportional to 65,759.64, 90,748.97 and 35,545.55

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Solution

The fourth proportional to 65,759.64, 90,748.97 and 35,545.55 is: 49,053.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,759.64 : 90,748.97 = 35,545.55 : x
  2. Step 2: Convert to fraction form
    65,759.64/90,748.97 = 35,545.55/x
  3. Step 3: Cross multiply
    65,759.64x = 90,748.97 × 35,545.55
  4. Step 4: Simplify right side
    65,759.64x = 3,225,722,050.58
  5. Step 5: Solve for x
    x = 3,225,722,050.58/65,759.64
  6. Step 6: Final answer
    x = 49,053.22

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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.