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Finding the Fourth Proportional to 18,357.29, 27,530.11 and 11,326.76

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Solution

The fourth proportional to 18,357.29, 27,530.11 and 11,326.76 is: 16,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.29 : 27,530.11 = 11,326.76 : x
  2. Step 2: Convert to fraction form
    18,357.29/27,530.11 = 11,326.76/x
  3. Step 3: Cross multiply
    18,357.29x = 27,530.11 × 11,326.76
  4. Step 4: Simplify right side
    18,357.29x = 311,826,948.74
  5. Step 5: Solve for x
    x = 311,826,948.74/18,357.29
  6. Step 6: Final answer
    x = 16,986.55

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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.