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Finding the Fourth Proportional to 11,476.16, 17,209.92 and 9,039.68

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Solution

The fourth proportional to 11,476.16, 17,209.92 and 9,039.68 is: 13,556.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,476.16 : 17,209.92 = 9,039.68 : x
  2. Step 2: Convert to fraction form
    11,476.16/17,209.92 = 9,039.68/x
  3. Step 3: Cross multiply
    11,476.16x = 17,209.92 × 9,039.68
  4. Step 4: Simplify right side
    11,476.16x = 155,572,169.63
  5. Step 5: Solve for x
    x = 155,572,169.63/11,476.16
  6. Step 6: Final answer
    x = 13,556.12

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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.