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Finding the Fourth Proportional to 17,870.48, 26,805.76 and 8,630

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Solution

The fourth proportional to 17,870.48, 26,805.76 and 8,630 is: 12,945.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,870.48 : 26,805.76 = 8,630 : x
  2. Step 2: Convert to fraction form
    17,870.48/26,805.76 = 8,630/x
  3. Step 3: Cross multiply
    17,870.48x = 26,805.76 × 8,630
  4. Step 4: Simplify right side
    17,870.48x = 231,333,708.80
  5. Step 5: Solve for x
    x = 231,333,708.80/17,870.48
  6. Step 6: Final answer
    x = 12,945.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.