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Finding the Fourth Proportional to 13,295.92, 19,948.52 and 8,871.28

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Solution

The fourth proportional to 13,295.92, 19,948.52 and 8,871.28 is: 13,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.92 : 19,948.52 = 8,871.28 : x
  2. Step 2: Convert to fraction form
    13,295.92/19,948.52 = 8,871.28/x
  3. Step 3: Cross multiply
    13,295.92x = 19,948.52 × 8,871.28
  4. Step 4: Simplify right side
    13,295.92x = 176,968,906.51
  5. Step 5: Solve for x
    x = 176,968,906.51/13,295.92
  6. Step 6: Final answer
    x = 13,310.02

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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.