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Finding the Fourth Proportional to 65,747.80, 98,427.30 and 58,749.40

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Solution

The fourth proportional to 65,747.80, 98,427.30 and 58,749.40 is: 87,950.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,747.80 : 98,427.30 = 58,749.40 : x
  2. Step 2: Convert to fraction form
    65,747.80/98,427.30 = 58,749.40/x
  3. Step 3: Cross multiply
    65,747.80x = 98,427.30 × 58,749.40
  4. Step 4: Simplify right side
    65,747.80x = 5,782,544,818.62
  5. Step 5: Solve for x
    x = 5,782,544,818.62/65,747.80
  6. Step 6: Final answer
    x = 87,950.39

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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.