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Finding the Fourth Proportional to 65,904.52, 90,954.78 and 37,614.48

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Solution

The fourth proportional to 65,904.52, 90,954.78 and 37,614.48 is: 51,911.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.52 : 90,954.78 = 37,614.48 : x
  2. Step 2: Convert to fraction form
    65,904.52/90,954.78 = 37,614.48/x
  3. Step 3: Cross multiply
    65,904.52x = 90,954.78 × 37,614.48
  4. Step 4: Simplify right side
    65,904.52x = 3,421,216,753.21
  5. Step 5: Solve for x
    x = 3,421,216,753.21/65,904.52
  6. Step 6: Final answer
    x = 51,911.72

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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.