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Finding the Fourth Proportional to 65,217.80, 97,859.10 and 25,776.20

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Solution

The fourth proportional to 65,217.80, 97,859.10 and 25,776.20 is: 38,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,217.80 : 97,859.10 = 25,776.20 : x
  2. Step 2: Convert to fraction form
    65,217.80/97,859.10 = 25,776.20/x
  3. Step 3: Cross multiply
    65,217.80x = 97,859.10 × 25,776.20
  4. Step 4: Simplify right side
    65,217.80x = 2,522,435,733.42
  5. Step 5: Solve for x
    x = 2,522,435,733.42/65,217.80
  6. Step 6: Final answer
    x = 38,677.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.