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Finding the Fourth Proportional to 65,228.66, 89,995.15 and 36,544.47

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Solution

The fourth proportional to 65,228.66, 89,995.15 and 36,544.47 is: 50,419.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,228.66 : 89,995.15 = 36,544.47 : x
  2. Step 2: Convert to fraction form
    65,228.66/89,995.15 = 36,544.47/x
  3. Step 3: Cross multiply
    65,228.66x = 89,995.15 × 36,544.47
  4. Step 4: Simplify right side
    65,228.66x = 3,288,824,767.52
  5. Step 5: Solve for x
    x = 3,288,824,767.52/65,228.66
  6. Step 6: Final answer
    x = 50,419.94

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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.