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Finding the Fourth Proportional to 18,019.88, 27,036.06 and 7,495.58

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Solution

The fourth proportional to 18,019.88, 27,036.06 and 7,495.58 is: 11,245.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.88 : 27,036.06 = 7,495.58 : x
  2. Step 2: Convert to fraction form
    18,019.88/27,036.06 = 7,495.58/x
  3. Step 3: Cross multiply
    18,019.88x = 27,036.06 × 7,495.58
  4. Step 4: Simplify right side
    18,019.88x = 202,650,950.61
  5. Step 5: Solve for x
    x = 202,650,950.61/18,019.88
  6. Step 6: Final answer
    x = 11,245.97

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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.