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Finding the Fourth Proportional to 10,491.11, 15,732.06 and 5,559.62

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Solution

The fourth proportional to 10,491.11, 15,732.06 and 5,559.62 is: 8,336.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.11 : 15,732.06 = 5,559.62 : x
  2. Step 2: Convert to fraction form
    10,491.11/15,732.06 = 5,559.62/x
  3. Step 3: Cross multiply
    10,491.11x = 15,732.06 × 5,559.62
  4. Step 4: Simplify right side
    10,491.11x = 87,464,275.42
  5. Step 5: Solve for x
    x = 87,464,275.42/10,491.11
  6. Step 6: Final answer
    x = 8,336.99

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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.