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Finding the Fourth Proportional to 12,316.59, 18,472.19 and 3,549.60

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Solution

The fourth proportional to 12,316.59, 18,472.19 and 3,549.60 is: 5,323.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.59 : 18,472.19 = 3,549.60 : x
  2. Step 2: Convert to fraction form
    12,316.59/18,472.19 = 3,549.60/x
  3. Step 3: Cross multiply
    12,316.59x = 18,472.19 × 3,549.60
  4. Step 4: Simplify right side
    12,316.59x = 65,568,867.88
  5. Step 5: Solve for x
    x = 65,568,867.88/12,316.59
  6. Step 6: Final answer
    x = 5,323.62

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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.