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Finding the Fourth Proportional to 57,618.01, 79,579.06 and 38,464.43

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Solution

The fourth proportional to 57,618.01, 79,579.06 and 38,464.43 is: 53,125.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,618.01 : 79,579.06 = 38,464.43 : x
  2. Step 2: Convert to fraction form
    57,618.01/79,579.06 = 38,464.43/x
  3. Step 3: Cross multiply
    57,618.01x = 79,579.06 × 38,464.43
  4. Step 4: Simplify right side
    57,618.01x = 3,060,963,285.62
  5. Step 5: Solve for x
    x = 3,060,963,285.62/57,618.01
  6. Step 6: Final answer
    x = 53,125.12

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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.