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Finding the Fourth Proportional to 57,762.65, 79,718.38 and 41,643.25

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Solution

The fourth proportional to 57,762.65, 79,718.38 and 41,643.25 is: 57,471.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,762.65 : 79,718.38 = 41,643.25 : x
  2. Step 2: Convert to fraction form
    57,762.65/79,718.38 = 41,643.25/x
  3. Step 3: Cross multiply
    57,762.65x = 79,718.38 × 41,643.25
  4. Step 4: Simplify right side
    57,762.65x = 3,319,732,124.53
  5. Step 5: Solve for x
    x = 3,319,732,124.53/57,762.65
  6. Step 6: Final answer
    x = 57,471.95

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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.