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Finding the Fourth Proportional to 64,660.52, 96,990.78 and 17,912.18

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Solution

The fourth proportional to 64,660.52, 96,990.78 and 17,912.18 is: 26,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,660.52 : 96,990.78 = 17,912.18 : x
  2. Step 2: Convert to fraction form
    64,660.52/96,990.78 = 17,912.18/x
  3. Step 3: Cross multiply
    64,660.52x = 96,990.78 × 17,912.18
  4. Step 4: Simplify right side
    64,660.52x = 1,737,316,309.70
  5. Step 5: Solve for x
    x = 1,737,316,309.70/64,660.52
  6. Step 6: Final answer
    x = 26,868.27

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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.