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Finding the Fourth Proportional to 17,871.03, 26,806.76 and 4,723.28

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Solution

The fourth proportional to 17,871.03, 26,806.76 and 4,723.28 is: 7,084.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,871.03 : 26,806.76 = 4,723.28 : x
  2. Step 2: Convert to fraction form
    17,871.03/26,806.76 = 4,723.28/x
  3. Step 3: Cross multiply
    17,871.03x = 26,806.76 × 4,723.28
  4. Step 4: Simplify right side
    17,871.03x = 126,615,845.18
  5. Step 5: Solve for x
    x = 126,615,845.18/17,871.03
  6. Step 6: Final answer
    x = 7,084.98

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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.