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Finding the Fourth Proportional to 65,963.08, 90,910.04 and 48,029.68

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Solution

The fourth proportional to 65,963.08, 90,910.04 and 48,029.68 is: 66,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,963.08 : 90,910.04 = 48,029.68 : x
  2. Step 2: Convert to fraction form
    65,963.08/90,910.04 = 48,029.68/x
  3. Step 3: Cross multiply
    65,963.08x = 90,910.04 × 48,029.68
  4. Step 4: Simplify right side
    65,963.08x = 4,366,380,129.99
  5. Step 5: Solve for x
    x = 4,366,380,129.99/65,963.08
  6. Step 6: Final answer
    x = 66,194.30

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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.