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Finding the Fourth Proportional to 18,806.12, 26,071.25 and 17,807.42

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Solution

The fourth proportional to 18,806.12, 26,071.25 and 17,807.42 is: 24,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.12 : 26,071.25 = 17,807.42 : x
  2. Step 2: Convert to fraction form
    18,806.12/26,071.25 = 17,807.42/x
  3. Step 3: Cross multiply
    18,806.12x = 26,071.25 × 17,807.42
  4. Step 4: Simplify right side
    18,806.12x = 464,261,698.68
  5. Step 5: Solve for x
    x = 464,261,698.68/18,806.12
  6. Step 6: Final answer
    x = 24,686.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.