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Finding the Fourth Proportional to 16,108.76, 24,162.06 and 4,421

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Solution

The fourth proportional to 16,108.76, 24,162.06 and 4,421 is: 6,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,108.76 : 24,162.06 = 4,421 : x
  2. Step 2: Convert to fraction form
    16,108.76/24,162.06 = 4,421/x
  3. Step 3: Cross multiply
    16,108.76x = 24,162.06 × 4,421
  4. Step 4: Simplify right side
    16,108.76x = 106,820,467.26
  5. Step 5: Solve for x
    x = 106,820,467.26/16,108.76
  6. Step 6: Final answer
    x = 6,631.20

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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.