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Finding the Fourth Proportional to 18,179.16, 27,228.78 and 15,023.40

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Solution

The fourth proportional to 18,179.16, 27,228.78 and 15,023.40 is: 22,502.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.16 : 27,228.78 = 15,023.40 : x
  2. Step 2: Convert to fraction form
    18,179.16/27,228.78 = 15,023.40/x
  3. Step 3: Cross multiply
    18,179.16x = 27,228.78 × 15,023.40
  4. Step 4: Simplify right side
    18,179.16x = 409,068,853.45
  5. Step 5: Solve for x
    x = 409,068,853.45/18,179.16
  6. Step 6: Final answer
    x = 22,502.08

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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.