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Finding the Fourth Proportional to 65,208.72, 89,988.12 and 36,923.52

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Solution

The fourth proportional to 65,208.72, 89,988.12 and 36,923.52 is: 50,954.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,208.72 : 89,988.12 = 36,923.52 : x
  2. Step 2: Convert to fraction form
    65,208.72/89,988.12 = 36,923.52/x
  3. Step 3: Cross multiply
    65,208.72x = 89,988.12 × 36,923.52
  4. Step 4: Simplify right side
    65,208.72x = 3,322,678,148.58
  5. Step 5: Solve for x
    x = 3,322,678,148.58/65,208.72
  6. Step 6: Final answer
    x = 50,954.51

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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.