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Finding the Fourth Proportional to 65,996.32, 91,073.96 and 35,781.07

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Solution

The fourth proportional to 65,996.32, 91,073.96 and 35,781.07 is: 49,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,996.32 : 91,073.96 = 35,781.07 : x
  2. Step 2: Convert to fraction form
    65,996.32/91,073.96 = 35,781.07/x
  3. Step 3: Cross multiply
    65,996.32x = 91,073.96 × 35,781.07
  4. Step 4: Simplify right side
    65,996.32x = 3,258,723,282.57
  5. Step 5: Solve for x
    x = 3,258,723,282.57/65,996.32
  6. Step 6: Final answer
    x = 49,377.35

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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.