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Finding the Fourth Proportional to 18,573.71, 27,862.99 and 9,808.97

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Solution

The fourth proportional to 18,573.71, 27,862.99 and 9,808.97 is: 14,714.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.71 : 27,862.99 = 9,808.97 : x
  2. Step 2: Convert to fraction form
    18,573.71/27,862.99 = 9,808.97/x
  3. Step 3: Cross multiply
    18,573.71x = 27,862.99 × 9,808.97
  4. Step 4: Simplify right side
    18,573.71x = 273,307,069.18
  5. Step 5: Solve for x
    x = 273,307,069.18/18,573.71
  6. Step 6: Final answer
    x = 14,714.73

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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.