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Finding the Fourth Proportional to 35,658.32, 49,212.12 and 20,551.52

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Solution

The fourth proportional to 35,658.32, 49,212.12 and 20,551.52 is: 28,363.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,658.32 : 49,212.12 = 20,551.52 : x
  2. Step 2: Convert to fraction form
    35,658.32/49,212.12 = 20,551.52/x
  3. Step 3: Cross multiply
    35,658.32x = 49,212.12 × 20,551.52
  4. Step 4: Simplify right side
    35,658.32x = 1,011,383,868.42
  5. Step 5: Solve for x
    x = 1,011,383,868.42/35,658.32
  6. Step 6: Final answer
    x = 28,363.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.