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Finding the Fourth Proportional to 18,655.00, 25,711.49 and 13,610.93

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Solution

The fourth proportional to 18,655.00, 25,711.49 and 13,610.93 is: 18,759.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.00 : 25,711.49 = 13,610.93 : x
  2. Step 2: Convert to fraction form
    18,655.00/25,711.49 = 13,610.93/x
  3. Step 3: Cross multiply
    18,655.00x = 25,711.49 × 13,610.93
  4. Step 4: Simplify right side
    18,655.00x = 349,957,196.06
  5. Step 5: Solve for x
    x = 349,957,196.06/18,655.00
  6. Step 6: Final answer
    x = 18,759.43

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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.