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Finding the Fourth Proportional to 17,693.61, 26,531.25 and 5,212.02

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Solution

The fourth proportional to 17,693.61, 26,531.25 and 5,212.02 is: 7,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,693.61 : 26,531.25 = 5,212.02 : x
  2. Step 2: Convert to fraction form
    17,693.61/26,531.25 = 5,212.02/x
  3. Step 3: Cross multiply
    17,693.61x = 26,531.25 × 5,212.02
  4. Step 4: Simplify right side
    17,693.61x = 138,281,405.63
  5. Step 5: Solve for x
    x = 138,281,405.63/17,693.61
  6. Step 6: Final answer
    x = 7,815.33

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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.