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Finding the Fourth Proportional to 65,659.98, 98,480.64 and 37,488.60

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Solution

The fourth proportional to 65,659.98, 98,480.64 and 37,488.60 is: 56,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,659.98 : 98,480.64 = 37,488.60 : x
  2. Step 2: Convert to fraction form
    65,659.98/98,480.64 = 37,488.60/x
  3. Step 3: Cross multiply
    65,659.98x = 98,480.64 × 37,488.60
  4. Step 4: Simplify right side
    65,659.98x = 3,691,901,320.70
  5. Step 5: Solve for x
    x = 3,691,901,320.70/65,659.98
  6. Step 6: Final answer
    x = 56,227.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.