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Finding the Fourth Proportional to 70,920.12, 106,412.48 and 26,550.33

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Solution

The fourth proportional to 70,920.12, 106,412.48 and 26,550.33 is: 39,837.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,920.12 : 106,412.48 = 26,550.33 : x
  2. Step 2: Convert to fraction form
    70,920.12/106,412.48 = 26,550.33/x
  3. Step 3: Cross multiply
    70,920.12x = 106,412.48 × 26,550.33
  4. Step 4: Simplify right side
    70,920.12x = 2,825,286,327.37
  5. Step 5: Solve for x
    x = 2,825,286,327.37/70,920.12
  6. Step 6: Final answer
    x = 39,837.59

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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.