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Finding the Fourth Proportional to 52,642.88, 72,650.67 and 29,678.36

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Solution

The fourth proportional to 52,642.88, 72,650.67 and 29,678.36 is: 40,958.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,642.88 : 72,650.67 = 29,678.36 : x
  2. Step 2: Convert to fraction form
    52,642.88/72,650.67 = 29,678.36/x
  3. Step 3: Cross multiply
    52,642.88x = 72,650.67 × 29,678.36
  4. Step 4: Simplify right side
    52,642.88x = 2,156,152,738.50
  5. Step 5: Solve for x
    x = 2,156,152,738.50/52,642.88
  6. Step 6: Final answer
    x = 40,958.11

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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.