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Finding the Fourth Proportional to 65,910.83, 98,931.86 and 36,342.59

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Solution

The fourth proportional to 65,910.83, 98,931.86 and 36,342.59 is: 54,550.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,910.83 : 98,931.86 = 36,342.59 : x
  2. Step 2: Convert to fraction form
    65,910.83/98,931.86 = 36,342.59/x
  3. Step 3: Cross multiply
    65,910.83x = 98,931.86 × 36,342.59
  4. Step 4: Simplify right side
    65,910.83x = 3,595,439,349.55
  5. Step 5: Solve for x
    x = 3,595,439,349.55/65,910.83
  6. Step 6: Final answer
    x = 54,550.06

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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.