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Finding the Fourth Proportional to 17,869.80, 26,814.30 and 7,482.60

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Solution

The fourth proportional to 17,869.80, 26,814.30 and 7,482.60 is: 11,227.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,869.80 : 26,814.30 = 7,482.60 : x
  2. Step 2: Convert to fraction form
    17,869.80/26,814.30 = 7,482.60/x
  3. Step 3: Cross multiply
    17,869.80x = 26,814.30 × 7,482.60
  4. Step 4: Simplify right side
    17,869.80x = 200,640,681.18
  5. Step 5: Solve for x
    x = 200,640,681.18/17,869.80
  6. Step 6: Final answer
    x = 11,227.92

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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.