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Finding the Fourth Proportional to 16,478.76, 24,721.79 and 9,079.41

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Solution

The fourth proportional to 16,478.76, 24,721.79 and 9,079.41 is: 13,621.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,478.76 : 24,721.79 = 9,079.41 : x
  2. Step 2: Convert to fraction form
    16,478.76/24,721.79 = 9,079.41/x
  3. Step 3: Cross multiply
    16,478.76x = 24,721.79 × 9,079.41
  4. Step 4: Simplify right side
    16,478.76x = 224,459,267.34
  5. Step 5: Solve for x
    x = 224,459,267.34/16,478.76
  6. Step 6: Final answer
    x = 13,621.13

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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.