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Finding the Fourth Proportional to 52,329.70, 77,940.43 and 52,074.78

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Solution

The fourth proportional to 52,329.70, 77,940.43 and 52,074.78 is: 77,560.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,329.70 : 77,940.43 = 52,074.78 : x
  2. Step 2: Convert to fraction form
    52,329.70/77,940.43 = 52,074.78/x
  3. Step 3: Cross multiply
    52,329.70x = 77,940.43 × 52,074.78
  4. Step 4: Simplify right side
    52,329.70x = 4,058,730,745.36
  5. Step 5: Solve for x
    x = 4,058,730,745.36/52,329.70
  6. Step 6: Final answer
    x = 77,560.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.