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Finding the Fourth Proportional to 10,382.11, 15,567.18 and 7,099.18

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Solution

The fourth proportional to 10,382.11, 15,567.18 and 7,099.18 is: 10,644.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.11 : 15,567.18 = 7,099.18 : x
  2. Step 2: Convert to fraction form
    10,382.11/15,567.18 = 7,099.18/x
  3. Step 3: Cross multiply
    10,382.11x = 15,567.18 × 7,099.18
  4. Step 4: Simplify right side
    10,382.11x = 110,514,212.91
  5. Step 5: Solve for x
    x = 110,514,212.91/10,382.11
  6. Step 6: Final answer
    x = 10,644.68

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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.