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Finding the Fourth Proportional to 14,885.68, 20,540.76 and 8,600.08

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Solution

The fourth proportional to 14,885.68, 20,540.76 and 8,600.08 is: 11,867.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.68 : 20,540.76 = 8,600.08 : x
  2. Step 2: Convert to fraction form
    14,885.68/20,540.76 = 8,600.08/x
  3. Step 3: Cross multiply
    14,885.68x = 20,540.76 × 8,600.08
  4. Step 4: Simplify right side
    14,885.68x = 176,652,179.26
  5. Step 5: Solve for x
    x = 176,652,179.26/14,885.68
  6. Step 6: Final answer
    x = 11,867.26

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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.