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Finding the Fourth Proportional to 11,332, 15,637.82 and 6,296.20

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Solution

The fourth proportional to 11,332, 15,637.82 and 6,296.20 is: 8,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,332 : 15,637.82 = 6,296.20 : x
  2. Step 2: Convert to fraction form
    11,332/15,637.82 = 6,296.20/x
  3. Step 3: Cross multiply
    11,332x = 15,637.82 × 6,296.20
  4. Step 4: Simplify right side
    11,332x = 98,458,842.28
  5. Step 5: Solve for x
    x = 98,458,842.28/11,332
  6. Step 6: Final answer
    x = 8,688.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.