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Finding the Fourth Proportional to 65,220.93, 90,005.18 and 36,932.09

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Solution

The fourth proportional to 65,220.93, 90,005.18 and 36,932.09 is: 50,966.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,220.93 : 90,005.18 = 36,932.09 : x
  2. Step 2: Convert to fraction form
    65,220.93/90,005.18 = 36,932.09/x
  3. Step 3: Cross multiply
    65,220.93x = 90,005.18 × 36,932.09
  4. Step 4: Simplify right side
    65,220.93x = 3,324,078,773.54
  5. Step 5: Solve for x
    x = 3,324,078,773.54/65,220.93
  6. Step 6: Final answer
    x = 50,966.44

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1.5x scale

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.