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Finding the Fourth Proportional to 67,853.60, 93,638.53 and 37,640.90

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Solution

The fourth proportional to 67,853.60, 93,638.53 and 37,640.90 is: 51,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,853.60 : 93,638.53 = 37,640.90 : x
  2. Step 2: Convert to fraction form
    67,853.60/93,638.53 = 37,640.90/x
  3. Step 3: Cross multiply
    67,853.60x = 93,638.53 × 37,640.90
  4. Step 4: Simplify right side
    67,853.60x = 3,524,638,825.02
  5. Step 5: Solve for x
    x = 3,524,638,825.02/67,853.60
  6. Step 6: Final answer
    x = 51,944.76

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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.