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Finding the Fourth Proportional to 65,745.70, 98,624.01 and 28,306.69

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Solution

The fourth proportional to 65,745.70, 98,624.01 and 28,306.69 is: 42,462.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,745.70 : 98,624.01 = 28,306.69 : x
  2. Step 2: Convert to fraction form
    65,745.70/98,624.01 = 28,306.69/x
  3. Step 3: Cross multiply
    65,745.70x = 98,624.01 × 28,306.69
  4. Step 4: Simplify right side
    65,745.70x = 2,791,719,277.63
  5. Step 5: Solve for x
    x = 2,791,719,277.63/65,745.70
  6. Step 6: Final answer
    x = 42,462.39

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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.