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Finding the Fourth Proportional to 65,151.84, 89,908.64 and 36,472.48

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Solution

The fourth proportional to 65,151.84, 89,908.64 and 36,472.48 is: 50,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,151.84 : 89,908.64 = 36,472.48 : x
  2. Step 2: Convert to fraction form
    65,151.84/89,908.64 = 36,472.48/x
  3. Step 3: Cross multiply
    65,151.84x = 89,908.64 × 36,472.48
  4. Step 4: Simplify right side
    65,151.84x = 3,279,191,074.23
  5. Step 5: Solve for x
    x = 3,279,191,074.23/65,151.84
  6. Step 6: Final answer
    x = 50,331.52

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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.