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Finding the Fourth Proportional to 63,074.94, 87,042.78 and 34,394.53

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Solution

The fourth proportional to 63,074.94, 87,042.78 and 34,394.53 is: 47,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,074.94 : 87,042.78 = 34,394.53 : x
  2. Step 2: Convert to fraction form
    63,074.94/87,042.78 = 34,394.53/x
  3. Step 3: Cross multiply
    63,074.94x = 87,042.78 × 34,394.53
  4. Step 4: Simplify right side
    63,074.94x = 2,993,795,507.99
  5. Step 5: Solve for x
    x = 2,993,795,507.99/63,074.94
  6. Step 6: Final answer
    x = 47,464.10

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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.