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Finding the Fourth Proportional to 19,409.16, 29,098.95 and 8,871.87

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Solution

The fourth proportional to 19,409.16, 29,098.95 and 8,871.87 is: 13,301.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,409.16 : 29,098.95 = 8,871.87 : x
  2. Step 2: Convert to fraction form
    19,409.16/29,098.95 = 8,871.87/x
  3. Step 3: Cross multiply
    19,409.16x = 29,098.95 × 8,871.87
  4. Step 4: Simplify right side
    19,409.16x = 258,162,101.54
  5. Step 5: Solve for x
    x = 258,162,101.54/19,409.16
  6. Step 6: Final answer
    x = 13,301.04

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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.