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Finding the Fourth Proportional to 57,860.92, 79,864.13 and 33,666.55

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Solution

The fourth proportional to 57,860.92, 79,864.13 and 33,666.55 is: 46,469.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,860.92 : 79,864.13 = 33,666.55 : x
  2. Step 2: Convert to fraction form
    57,860.92/79,864.13 = 33,666.55/x
  3. Step 3: Cross multiply
    57,860.92x = 79,864.13 × 33,666.55
  4. Step 4: Simplify right side
    57,860.92x = 2,688,749,870.22
  5. Step 5: Solve for x
    x = 2,688,749,870.22/57,860.92
  6. Step 6: Final answer
    x = 46,469.19

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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.