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Finding the Fourth Proportional to 65,759.39, 90,747.78 and 37,465.28

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Solution

The fourth proportional to 65,759.39, 90,747.78 and 37,465.28 is: 51,701.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,759.39 : 90,747.78 = 37,465.28 : x
  2. Step 2: Convert to fraction form
    65,759.39/90,747.78 = 37,465.28/x
  3. Step 3: Cross multiply
    65,759.39x = 90,747.78 × 37,465.28
  4. Step 4: Simplify right side
    65,759.39x = 3,399,890,987.08
  5. Step 5: Solve for x
    x = 3,399,890,987.08/65,759.39
  6. Step 6: Final answer
    x = 51,701.98

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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.