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Finding the Fourth Proportional to 70,838.83, 97,757.31 and 39,007.73

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Solution

The fourth proportional to 70,838.83, 97,757.31 and 39,007.73 is: 53,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,838.83 : 97,757.31 = 39,007.73 : x
  2. Step 2: Convert to fraction form
    70,838.83/97,757.31 = 39,007.73/x
  3. Step 3: Cross multiply
    70,838.83x = 97,757.31 × 39,007.73
  4. Step 4: Simplify right side
    70,838.83x = 3,813,290,265.67
  5. Step 5: Solve for x
    x = 3,813,290,265.67/70,838.83
  6. Step 6: Final answer
    x = 53,830.51

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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.