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Finding the Fourth Proportional to 16,869.81, 25,300.16 and 6,339.41

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Solution

The fourth proportional to 16,869.81, 25,300.16 and 6,339.41 is: 9,507.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,869.81 : 25,300.16 = 6,339.41 : x
  2. Step 2: Convert to fraction form
    16,869.81/25,300.16 = 6,339.41/x
  3. Step 3: Cross multiply
    16,869.81x = 25,300.16 × 6,339.41
  4. Step 4: Simplify right side
    16,869.81x = 160,387,929.11
  5. Step 5: Solve for x
    x = 160,387,929.11/16,869.81
  6. Step 6: Final answer
    x = 9,507.39

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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.