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Finding the Fourth Proportional to 18,092.80, 27,130.16 and 11,532.16

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Solution

The fourth proportional to 18,092.80, 27,130.16 and 11,532.16 is: 17,292.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092.80 : 27,130.16 = 11,532.16 : x
  2. Step 2: Convert to fraction form
    18,092.80/27,130.16 = 11,532.16/x
  3. Step 3: Cross multiply
    18,092.80x = 27,130.16 × 11,532.16
  4. Step 4: Simplify right side
    18,092.80x = 312,869,345.95
  5. Step 5: Solve for x
    x = 312,869,345.95/18,092.80
  6. Step 6: Final answer
    x = 17,292.48

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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.