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Finding the Fourth Proportional to 11,480.16, 17,215.92 and 9,043.68

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Solution

The fourth proportional to 11,480.16, 17,215.92 and 9,043.68 is: 13,562.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.16 : 17,215.92 = 9,043.68 : x
  2. Step 2: Convert to fraction form
    11,480.16/17,215.92 = 9,043.68/x
  3. Step 3: Cross multiply
    11,480.16x = 17,215.92 × 9,043.68
  4. Step 4: Simplify right side
    11,480.16x = 155,695,271.39
  5. Step 5: Solve for x
    x = 155,695,271.39/11,480.16
  6. Step 6: Final answer
    x = 13,562.12

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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.