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Finding the Fourth Proportional to 65,697.24, 90,669.44 and 37,398.36

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Solution

The fourth proportional to 65,697.24, 90,669.44 and 37,398.36 is: 51,613.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,697.24 : 90,669.44 = 37,398.36 : x
  2. Step 2: Convert to fraction form
    65,697.24/90,669.44 = 37,398.36/x
  3. Step 3: Cross multiply
    65,697.24x = 90,669.44 × 37,398.36
  4. Step 4: Simplify right side
    65,697.24x = 3,390,888,358.12
  5. Step 5: Solve for x
    x = 3,390,888,358.12/65,697.24
  6. Step 6: Final answer
    x = 51,613.86

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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.