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Finding the Fourth Proportional to 68,567.72, 94,614 and 38,351.48

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Solution

The fourth proportional to 68,567.72, 94,614 and 38,351.48 is: 52,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,567.72 : 94,614 = 38,351.48 : x
  2. Step 2: Convert to fraction form
    68,567.72/94,614 = 38,351.48/x
  3. Step 3: Cross multiply
    68,567.72x = 94,614 × 38,351.48
  4. Step 4: Simplify right side
    68,567.72x = 3,628,586,928.72
  5. Step 5: Solve for x
    x = 3,628,586,928.72/68,567.72
  6. Step 6: Final answer
    x = 52,919.75

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1.5x scale

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.