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Finding the Fourth Proportional to 65,759.48, 90,748.02 and 35,544.80

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Solution

The fourth proportional to 65,759.48, 90,748.02 and 35,544.80 is: 49,051.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,759.48 : 90,748.02 = 35,544.80 : x
  2. Step 2: Convert to fraction form
    65,759.48/90,748.02 = 35,544.80/x
  3. Step 3: Cross multiply
    65,759.48x = 90,748.02 × 35,544.80
  4. Step 4: Simplify right side
    65,759.48x = 3,225,619,994.43
  5. Step 5: Solve for x
    x = 3,225,619,994.43/65,759.48
  6. Step 6: Final answer
    x = 49,051.79

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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.