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Finding the Fourth Proportional to 8,744.40, 13,117.40 and 3,549.20

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Solution

The fourth proportional to 8,744.40, 13,117.40 and 3,549.20 is: 5,324.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,744.40 : 13,117.40 = 3,549.20 : x
  2. Step 2: Convert to fraction form
    8,744.40/13,117.40 = 3,549.20/x
  3. Step 3: Cross multiply
    8,744.40x = 13,117.40 × 3,549.20
  4. Step 4: Simplify right side
    8,744.40x = 46,556,276.08
  5. Step 5: Solve for x
    x = 46,556,276.08/8,744.40
  6. Step 6: Final answer
    x = 5,324.12

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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.