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Finding the Fourth Proportional to 68,933.70, 96,638.40 and 68,933.70

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Solution

The fourth proportional to 68,933.70, 96,638.40 and 68,933.70 is: 96,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,933.70 : 96,638.40 = 68,933.70 : x
  2. Step 2: Convert to fraction form
    68,933.70/96,638.40 = 68,933.70/x
  3. Step 3: Cross multiply
    68,933.70x = 96,638.40 × 68,933.70
  4. Step 4: Simplify right side
    68,933.70x = 6,661,642,474.08
  5. Step 5: Solve for x
    x = 6,661,642,474.08/68,933.70
  6. Step 6: Final answer
    x = 96,638.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.