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Finding the Fourth Proportional to 52,913.70, 73,018.62 and 29,040.78

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Solution

The fourth proportional to 52,913.70, 73,018.62 and 29,040.78 is: 40,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,913.70 : 73,018.62 = 29,040.78 : x
  2. Step 2: Convert to fraction form
    52,913.70/73,018.62 = 29,040.78/x
  3. Step 3: Cross multiply
    52,913.70x = 73,018.62 × 29,040.78
  4. Step 4: Simplify right side
    52,913.70x = 2,120,517,679.32
  5. Step 5: Solve for x
    x = 2,120,517,679.32/52,913.70
  6. Step 6: Final answer
    x = 40,075.02

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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.