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Finding the Fourth Proportional to 18,377.70, 27,575.65 and 7,284.14

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Solution

The fourth proportional to 18,377.70, 27,575.65 and 7,284.14 is: 10,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.70 : 27,575.65 = 7,284.14 : x
  2. Step 2: Convert to fraction form
    18,377.70/27,575.65 = 7,284.14/x
  3. Step 3: Cross multiply
    18,377.70x = 27,575.65 × 7,284.14
  4. Step 4: Simplify right side
    18,377.70x = 200,864,895.19
  5. Step 5: Solve for x
    x = 200,864,895.19/18,377.70
  6. Step 6: Final answer
    x = 10,929.82

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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.