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Finding the Fourth Proportional to 17,188.06, 25,781.60 and 5,501.10

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Solution

The fourth proportional to 17,188.06, 25,781.60 and 5,501.10 is: 8,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,188.06 : 25,781.60 = 5,501.10 : x
  2. Step 2: Convert to fraction form
    17,188.06/25,781.60 = 5,501.10/x
  3. Step 3: Cross multiply
    17,188.06x = 25,781.60 × 5,501.10
  4. Step 4: Simplify right side
    17,188.06x = 141,827,159.76
  5. Step 5: Solve for x
    x = 141,827,159.76/17,188.06
  6. Step 6: Final answer
    x = 8,251.49

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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.