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Finding the Fourth Proportional to 17,760.50, 26,641.23 and 5,448.50

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Solution

The fourth proportional to 17,760.50, 26,641.23 and 5,448.50 is: 8,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,760.50 : 26,641.23 = 5,448.50 : x
  2. Step 2: Convert to fraction form
    17,760.50/26,641.23 = 5,448.50/x
  3. Step 3: Cross multiply
    17,760.50x = 26,641.23 × 5,448.50
  4. Step 4: Simplify right side
    17,760.50x = 145,154,741.66
  5. Step 5: Solve for x
    x = 145,154,741.66/17,760.50
  6. Step 6: Final answer
    x = 8,172.90

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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.