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Finding the Fourth Proportional to 36,810.48, 55,215 and 10,515

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Solution

The fourth proportional to 36,810.48, 55,215 and 10,515 is: 15,772.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,810.48 : 55,215 = 10,515 : x
  2. Step 2: Convert to fraction form
    36,810.48/55,215 = 10,515/x
  3. Step 3: Cross multiply
    36,810.48x = 55,215 × 10,515
  4. Step 4: Simplify right side
    36,810.48x = 580,585,725
  5. Step 5: Solve for x
    x = 580,585,725/36,810.48
  6. Step 6: Final answer
    x = 15,772.29

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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.