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Finding the Fourth Proportional to 57,482.87, 86,115.80 and 29,420.69

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Solution

The fourth proportional to 57,482.87, 86,115.80 and 29,420.69 is: 44,075.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,482.87 : 86,115.80 = 29,420.69 : x
  2. Step 2: Convert to fraction form
    57,482.87/86,115.80 = 29,420.69/x
  3. Step 3: Cross multiply
    57,482.87x = 86,115.80 × 29,420.69
  4. Step 4: Simplify right side
    57,482.87x = 2,533,586,604.79
  5. Step 5: Solve for x
    x = 2,533,586,604.79/57,482.87
  6. Step 6: Final answer
    x = 44,075.51

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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.