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Finding the Fourth Proportional to 67,251, 100,867.42 and 27,802.64

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Solution

The fourth proportional to 67,251, 100,867.42 and 27,802.64 is: 41,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,251 : 100,867.42 = 27,802.64 : x
  2. Step 2: Convert to fraction form
    67,251/100,867.42 = 27,802.64/x
  3. Step 3: Cross multiply
    67,251x = 100,867.42 × 27,802.64
  4. Step 4: Simplify right side
    67,251x = 2,804,380,565.99
  5. Step 5: Solve for x
    x = 2,804,380,565.99/67,251
  6. Step 6: Final answer
    x = 41,700.21

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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.