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Finding the Fourth Proportional to 15,049.00, 20,767.28 and 8,675.45

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Solution

The fourth proportional to 15,049.00, 20,767.28 and 8,675.45 is: 11,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.00 : 20,767.28 = 8,675.45 : x
  2. Step 2: Convert to fraction form
    15,049.00/20,767.28 = 8,675.45/x
  3. Step 3: Cross multiply
    15,049.00x = 20,767.28 × 8,675.45
  4. Step 4: Simplify right side
    15,049.00x = 180,165,352.06
  5. Step 5: Solve for x
    x = 180,165,352.06/15,049.00
  6. Step 6: Final answer
    x = 11,971.92

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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.