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Finding the Fourth Proportional to 27,179.18, 40,774.53 and 8,724.14

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Solution

The fourth proportional to 27,179.18, 40,774.53 and 8,724.14 is: 13,088.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,179.18 : 40,774.53 = 8,724.14 : x
  2. Step 2: Convert to fraction form
    27,179.18/40,774.53 = 8,724.14/x
  3. Step 3: Cross multiply
    27,179.18x = 40,774.53 × 8,724.14
  4. Step 4: Simplify right side
    27,179.18x = 355,722,708.15
  5. Step 5: Solve for x
    x = 355,722,708.15/27,179.18
  6. Step 6: Final answer
    x = 13,088.06

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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.