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Finding the Fourth Proportional to 70,022.70, 96,627.56 and 39,803.85

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Solution

The fourth proportional to 70,022.70, 96,627.56 and 39,803.85 is: 54,927.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,022.70 : 96,627.56 = 39,803.85 : x
  2. Step 2: Convert to fraction form
    70,022.70/96,627.56 = 39,803.85/x
  3. Step 3: Cross multiply
    70,022.70x = 96,627.56 × 39,803.85
  4. Step 4: Simplify right side
    70,022.70x = 3,846,148,705.09
  5. Step 5: Solve for x
    x = 3,846,148,705.09/70,022.70
  6. Step 6: Final answer
    x = 54,927.17

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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.