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Finding the Fourth Proportional to 69,719.70, 96,183.54 and 42,853.62

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Solution

The fourth proportional to 69,719.70, 96,183.54 and 42,853.62 is: 59,119.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,719.70 : 96,183.54 = 42,853.62 : x
  2. Step 2: Convert to fraction form
    69,719.70/96,183.54 = 42,853.62/x
  3. Step 3: Cross multiply
    69,719.70x = 96,183.54 × 42,853.62
  4. Step 4: Simplify right side
    69,719.70x = 4,121,812,873.41
  5. Step 5: Solve for x
    x = 4,121,812,873.41/69,719.70
  6. Step 6: Final answer
    x = 59,119.77

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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.