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Finding the Fourth Proportional to 70,863.15, 106,313.01 and 26,490.24

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Solution

The fourth proportional to 70,863.15, 106,313.01 and 26,490.24 is: 39,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,863.15 : 106,313.01 = 26,490.24 : x
  2. Step 2: Convert to fraction form
    70,863.15/106,313.01 = 26,490.24/x
  3. Step 3: Cross multiply
    70,863.15x = 106,313.01 × 26,490.24
  4. Step 4: Simplify right side
    70,863.15x = 2,816,257,050.68
  5. Step 5: Solve for x
    x = 2,816,257,050.68/70,863.15
  6. Step 6: Final answer
    x = 39,742.19

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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.