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Finding the Fourth Proportional to 65,951.98, 91,011.84 and 38,727.64

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Solution

The fourth proportional to 65,951.98, 91,011.84 and 38,727.64 is: 53,443.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,951.98 : 91,011.84 = 38,727.64 : x
  2. Step 2: Convert to fraction form
    65,951.98/91,011.84 = 38,727.64/x
  3. Step 3: Cross multiply
    65,951.98x = 91,011.84 × 38,727.64
  4. Step 4: Simplify right side
    65,951.98x = 3,524,673,775.26
  5. Step 5: Solve for x
    x = 3,524,673,775.26/65,951.98
  6. Step 6: Final answer
    x = 53,443.03

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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.