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Finding the Fourth Proportional to 18,806.47, 25,952.02 and 11,256.97

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Solution

The fourth proportional to 18,806.47, 25,952.02 and 11,256.97 is: 15,534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.47 : 25,952.02 = 11,256.97 : x
  2. Step 2: Convert to fraction form
    18,806.47/25,952.02 = 11,256.97/x
  3. Step 3: Cross multiply
    18,806.47x = 25,952.02 × 11,256.97
  4. Step 4: Simplify right side
    18,806.47x = 292,141,045.70
  5. Step 5: Solve for x
    x = 292,141,045.70/18,806.47
  6. Step 6: Final answer
    x = 15,534.07

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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.