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Finding the Fourth Proportional to 20,008.68, 27,605.34 and 12,047.88

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Solution

The fourth proportional to 20,008.68, 27,605.34 and 12,047.88 is: 16,622.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.68 : 27,605.34 = 12,047.88 : x
  2. Step 2: Convert to fraction form
    20,008.68/27,605.34 = 12,047.88/x
  3. Step 3: Cross multiply
    20,008.68x = 27,605.34 × 12,047.88
  4. Step 4: Simplify right side
    20,008.68x = 332,585,823.68
  5. Step 5: Solve for x
    x = 332,585,823.68/20,008.68
  6. Step 6: Final answer
    x = 16,622.08

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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.