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Finding the Fourth Proportional to 35,537.52, 53,247.90 and 12,151.20

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Solution

The fourth proportional to 35,537.52, 53,247.90 and 12,151.20 is: 18,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,537.52 : 53,247.90 = 12,151.20 : x
  2. Step 2: Convert to fraction form
    35,537.52/53,247.90 = 12,151.20/x
  3. Step 3: Cross multiply
    35,537.52x = 53,247.90 × 12,151.20
  4. Step 4: Simplify right side
    35,537.52x = 647,025,882.48
  5. Step 5: Solve for x
    x = 647,025,882.48/35,537.52
  6. Step 6: Final answer
    x = 18,206.84

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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.