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Finding the Fourth Proportional to 65,406.80, 98,159.88 and 47,922.32

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Solution

The fourth proportional to 65,406.80, 98,159.88 and 47,922.32 is: 71,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,406.80 : 98,159.88 = 47,922.32 : x
  2. Step 2: Convert to fraction form
    65,406.80/98,159.88 = 47,922.32/x
  3. Step 3: Cross multiply
    65,406.80x = 98,159.88 × 47,922.32
  4. Step 4: Simplify right side
    65,406.80x = 4,704,049,180.52
  5. Step 5: Solve for x
    x = 4,704,049,180.52/65,406.80
  6. Step 6: Final answer
    x = 71,919.88

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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.