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Finding the Fourth Proportional to 18,155.60, 27,233.40 and 14,872.40

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Solution

The fourth proportional to 18,155.60, 27,233.40 and 14,872.40 is: 22,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.60 : 27,233.40 = 14,872.40 : x
  2. Step 2: Convert to fraction form
    18,155.60/27,233.40 = 14,872.40/x
  3. Step 3: Cross multiply
    18,155.60x = 27,233.40 × 14,872.40
  4. Step 4: Simplify right side
    18,155.60x = 405,026,018.16
  5. Step 5: Solve for x
    x = 405,026,018.16/18,155.60
  6. Step 6: Final answer
    x = 22,308.60

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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.