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Finding the Fourth Proportional to 17,708.55, 26,570.00 and 6,618.41

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Solution

The fourth proportional to 17,708.55, 26,570.00 and 6,618.41 is: 9,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,708.55 : 26,570.00 = 6,618.41 : x
  2. Step 2: Convert to fraction form
    17,708.55/26,570.00 = 6,618.41/x
  3. Step 3: Cross multiply
    17,708.55x = 26,570.00 × 6,618.41
  4. Step 4: Simplify right side
    17,708.55x = 175,851,118.42
  5. Step 5: Solve for x
    x = 175,851,118.42/17,708.55
  6. Step 6: Final answer
    x = 9,930.30

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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.