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Finding the Fourth Proportional to 70,321.38, 105,506.37 and 43,994.76

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Solution

The fourth proportional to 70,321.38, 105,506.37 and 43,994.76 is: 66,007.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,321.38 : 105,506.37 = 43,994.76 : x
  2. Step 2: Convert to fraction form
    70,321.38/105,506.37 = 43,994.76/x
  3. Step 3: Cross multiply
    70,321.38x = 105,506.37 × 43,994.76
  4. Step 4: Simplify right side
    70,321.38x = 4,641,727,426.62
  5. Step 5: Solve for x
    x = 4,641,727,426.62/70,321.38
  6. Step 6: Final answer
    x = 66,007.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.