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Finding the Fourth Proportional to 17,357.85, 26,032.86 and 7,988.88

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Solution

The fourth proportional to 17,357.85, 26,032.86 and 7,988.88 is: 11,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,357.85 : 26,032.86 = 7,988.88 : x
  2. Step 2: Convert to fraction form
    17,357.85/26,032.86 = 7,988.88/x
  3. Step 3: Cross multiply
    17,357.85x = 26,032.86 × 7,988.88
  4. Step 4: Simplify right side
    17,357.85x = 207,973,394.60
  5. Step 5: Solve for x
    x = 207,973,394.60/17,357.85
  6. Step 6: Final answer
    x = 11,981.52

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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.