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Finding the Fourth Proportional to 10,609.09, 15,913.14 and 4,367.55

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Solution

The fourth proportional to 10,609.09, 15,913.14 and 4,367.55 is: 6,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,609.09 : 15,913.14 = 4,367.55 : x
  2. Step 2: Convert to fraction form
    10,609.09/15,913.14 = 4,367.55/x
  3. Step 3: Cross multiply
    10,609.09x = 15,913.14 × 4,367.55
  4. Step 4: Simplify right side
    10,609.09x = 69,501,434.61
  5. Step 5: Solve for x
    x = 69,501,434.61/10,609.09
  6. Step 6: Final answer
    x = 6,551.12

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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.