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Finding the Fourth Proportional to 20,609.95, 30,882.95 and 14,297.16

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Solution

The fourth proportional to 20,609.95, 30,882.95 and 14,297.16 is: 21,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.95 : 30,882.95 = 14,297.16 : x
  2. Step 2: Convert to fraction form
    20,609.95/30,882.95 = 14,297.16/x
  3. Step 3: Cross multiply
    20,609.95x = 30,882.95 × 14,297.16
  4. Step 4: Simplify right side
    20,609.95x = 441,538,358.75
  5. Step 5: Solve for x
    x = 441,538,358.75/20,609.95
  6. Step 6: Final answer
    x = 21,423.55

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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.