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Finding the Fourth Proportional to 18,154.17, 27,242.96 and 7,766.01

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Solution

The fourth proportional to 18,154.17, 27,242.96 and 7,766.01 is: 11,654.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.17 : 27,242.96 = 7,766.01 : x
  2. Step 2: Convert to fraction form
    18,154.17/27,242.96 = 7,766.01/x
  3. Step 3: Cross multiply
    18,154.17x = 27,242.96 × 7,766.01
  4. Step 4: Simplify right side
    18,154.17x = 211,569,060.96
  5. Step 5: Solve for x
    x = 211,569,060.96/18,154.17
  6. Step 6: Final answer
    x = 11,654.02

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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.