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Finding the Fourth Proportional to 69,940.70, 96,489.28 and 48,732.27

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Solution

The fourth proportional to 69,940.70, 96,489.28 and 48,732.27 is: 67,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,940.70 : 96,489.28 = 48,732.27 : x
  2. Step 2: Convert to fraction form
    69,940.70/96,489.28 = 48,732.27/x
  3. Step 3: Cross multiply
    69,940.70x = 96,489.28 × 48,732.27
  4. Step 4: Simplify right side
    69,940.70x = 4,702,141,070.03
  5. Step 5: Solve for x
    x = 4,702,141,070.03/69,940.70
  6. Step 6: Final answer
    x = 67,230.40

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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.