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Finding the Fourth Proportional to 18,317.76, 27,478.65 and 5,834.85

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Solution

The fourth proportional to 18,317.76, 27,478.65 and 5,834.85 is: 8,752.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.76 : 27,478.65 = 5,834.85 : x
  2. Step 2: Convert to fraction form
    18,317.76/27,478.65 = 5,834.85/x
  3. Step 3: Cross multiply
    18,317.76x = 27,478.65 × 5,834.85
  4. Step 4: Simplify right side
    18,317.76x = 160,333,800.95
  5. Step 5: Solve for x
    x = 160,333,800.95/18,317.76
  6. Step 6: Final answer
    x = 8,752.92

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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.