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Finding the Fourth Proportional to 65,508.30, 90,390.39 and 36,824.17

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Solution

The fourth proportional to 65,508.30, 90,390.39 and 36,824.17 is: 50,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,508.30 : 90,390.39 = 36,824.17 : x
  2. Step 2: Convert to fraction form
    65,508.30/90,390.39 = 36,824.17/x
  3. Step 3: Cross multiply
    65,508.30x = 90,390.39 × 36,824.17
  4. Step 4: Simplify right side
    65,508.30x = 3,328,551,087.73
  5. Step 5: Solve for x
    x = 3,328,551,087.73/65,508.30
  6. Step 6: Final answer
    x = 50,811.14

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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.