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Finding the Fourth Proportional to 32,138.70, 48,175.65 and 14,621.10

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Solution

The fourth proportional to 32,138.70, 48,175.65 and 14,621.10 is: 21,916.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,138.70 : 48,175.65 = 14,621.10 : x
  2. Step 2: Convert to fraction form
    32,138.70/48,175.65 = 14,621.10/x
  3. Step 3: Cross multiply
    32,138.70x = 48,175.65 × 14,621.10
  4. Step 4: Simplify right side
    32,138.70x = 704,380,996.22
  5. Step 5: Solve for x
    x = 704,380,996.22/32,138.70
  6. Step 6: Final answer
    x = 21,916.91

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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.