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Finding the Fourth Proportional to 65,211.40, 89,997.30 and 36,922.12

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Solution

The fourth proportional to 65,211.40, 89,997.30 and 36,922.12 is: 50,955.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,211.40 : 89,997.30 = 36,922.12 : x
  2. Step 2: Convert to fraction form
    65,211.40/89,997.30 = 36,922.12/x
  3. Step 3: Cross multiply
    65,211.40x = 89,997.30 × 36,922.12
  4. Step 4: Simplify right side
    65,211.40x = 3,322,891,110.28
  5. Step 5: Solve for x
    x = 3,322,891,110.28/65,211.40
  6. Step 6: Final answer
    x = 50,955.68

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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.