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Finding the Fourth Proportional to 15,041.97, 20,758.68 and 8,327.88

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Solution

The fourth proportional to 15,041.97, 20,758.68 and 8,327.88 is: 11,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,041.97 : 20,758.68 = 8,327.88 : x
  2. Step 2: Convert to fraction form
    15,041.97/20,758.68 = 8,327.88/x
  3. Step 3: Cross multiply
    15,041.97x = 20,758.68 × 8,327.88
  4. Step 4: Simplify right side
    15,041.97x = 172,875,796.00
  5. Step 5: Solve for x
    x = 172,875,796.00/15,041.97
  6. Step 6: Final answer
    x = 11,492.90

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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.