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Finding the Fourth Proportional to 65,737.74, 98,544.20 and 21,333.44

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Solution

The fourth proportional to 65,737.74, 98,544.20 and 21,333.44 is: 31,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,737.74 : 98,544.20 = 21,333.44 : x
  2. Step 2: Convert to fraction form
    65,737.74/98,544.20 = 21,333.44/x
  3. Step 3: Cross multiply
    65,737.74x = 98,544.20 × 21,333.44
  4. Step 4: Simplify right side
    65,737.74x = 2,102,286,917.74
  5. Step 5: Solve for x
    x = 2,102,286,917.74/65,737.74
  6. Step 6: Final answer
    x = 31,979.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.