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Finding the Fourth Proportional to 18,438.80, 27,652.19 and 5,955.89

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Solution

The fourth proportional to 18,438.80, 27,652.19 and 5,955.89 is: 8,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.80 : 27,652.19 = 5,955.89 : x
  2. Step 2: Convert to fraction form
    18,438.80/27,652.19 = 5,955.89/x
  3. Step 3: Cross multiply
    18,438.80x = 27,652.19 × 5,955.89
  4. Step 4: Simplify right side
    18,438.80x = 164,693,233.86
  5. Step 5: Solve for x
    x = 164,693,233.86/18,438.80
  6. Step 6: Final answer
    x = 8,931.89

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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.