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Finding the Fourth Proportional to 70,035.73, 96,635.57 and 39,815.84

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Solution

The fourth proportional to 70,035.73, 96,635.57 and 39,815.84 is: 54,938.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,035.73 : 96,635.57 = 39,815.84 : x
  2. Step 2: Convert to fraction form
    70,035.73/96,635.57 = 39,815.84/x
  3. Step 3: Cross multiply
    70,035.73x = 96,635.57 × 39,815.84
  4. Step 4: Simplify right side
    70,035.73x = 3,847,626,435.94
  5. Step 5: Solve for x
    x = 3,847,626,435.94/70,035.73
  6. Step 6: Final answer
    x = 54,938.05

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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.