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Finding the Fourth Proportional to 65,568.98, 90,484.26 and 36,886.46

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Solution

The fourth proportional to 65,568.98, 90,484.26 and 36,886.46 is: 50,902.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,568.98 : 90,484.26 = 36,886.46 : x
  2. Step 2: Convert to fraction form
    65,568.98/90,484.26 = 36,886.46/x
  3. Step 3: Cross multiply
    65,568.98x = 90,484.26 × 36,886.46
  4. Step 4: Simplify right side
    65,568.98x = 3,337,644,037.12
  5. Step 5: Solve for x
    x = 3,337,644,037.12/65,568.98
  6. Step 6: Final answer
    x = 50,902.79

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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.