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Finding the Fourth Proportional to 27,959.66, 38,584.01 and 15,213.22

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Solution

The fourth proportional to 27,959.66, 38,584.01 and 15,213.22 is: 20,994.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,959.66 : 38,584.01 = 15,213.22 : x
  2. Step 2: Convert to fraction form
    27,959.66/38,584.01 = 15,213.22/x
  3. Step 3: Cross multiply
    27,959.66x = 38,584.01 × 15,213.22
  4. Step 4: Simplify right side
    27,959.66x = 586,987,032.61
  5. Step 5: Solve for x
    x = 586,987,032.61/27,959.66
  6. Step 6: Final answer
    x = 20,994.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.