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Finding the Fourth Proportional to 10,888.65, 16,311.11 and 5,338.53

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Solution

The fourth proportional to 10,888.65, 16,311.11 and 5,338.53 is: 7,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.65 : 16,311.11 = 5,338.53 : x
  2. Step 2: Convert to fraction form
    10,888.65/16,311.11 = 5,338.53/x
  3. Step 3: Cross multiply
    10,888.65x = 16,311.11 × 5,338.53
  4. Step 4: Simplify right side
    10,888.65x = 87,077,323.38
  5. Step 5: Solve for x
    x = 87,077,323.38/10,888.65
  6. Step 6: Final answer
    x = 7,997.07

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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.