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Finding the Fourth Proportional to 43,152, 64,616.64 and 25,633.92

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Solution

The fourth proportional to 43,152, 64,616.64 and 25,633.92 is: 38,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,152 : 64,616.64 = 25,633.92 : x
  2. Step 2: Convert to fraction form
    43,152/64,616.64 = 25,633.92/x
  3. Step 3: Cross multiply
    43,152x = 64,616.64 × 25,633.92
  4. Step 4: Simplify right side
    43,152x = 1,656,377,780.43
  5. Step 5: Solve for x
    x = 1,656,377,780.43/43,152
  6. Step 6: Final answer
    x = 38,384.73

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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.