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Finding the Fourth Proportional to 65,701.70, 98,558.02 and 28,262.68

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Solution

The fourth proportional to 65,701.70, 98,558.02 and 28,262.68 is: 42,396.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,701.70 : 98,558.02 = 28,262.68 : x
  2. Step 2: Convert to fraction form
    65,701.70/98,558.02 = 28,262.68/x
  3. Step 3: Cross multiply
    65,701.70x = 98,558.02 × 28,262.68
  4. Step 4: Simplify right side
    65,701.70x = 2,785,513,780.69
  5. Step 5: Solve for x
    x = 2,785,513,780.69/65,701.70
  6. Step 6: Final answer
    x = 42,396.37

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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.