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Finding the Fourth Proportional to 18,110.10, 27,165.15 and 17,381.10

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Solution

The fourth proportional to 18,110.10, 27,165.15 and 17,381.10 is: 26,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.10 : 27,165.15 = 17,381.10 : x
  2. Step 2: Convert to fraction form
    18,110.10/27,165.15 = 17,381.10/x
  3. Step 3: Cross multiply
    18,110.10x = 27,165.15 × 17,381.10
  4. Step 4: Simplify right side
    18,110.10x = 472,160,188.67
  5. Step 5: Solve for x
    x = 472,160,188.67/18,110.10
  6. Step 6: Final answer
    x = 26,071.65

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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.