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Finding the Fourth Proportional to 70,525.08, 105,789.15 and 25,550.45

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Solution

The fourth proportional to 70,525.08, 105,789.15 and 25,550.45 is: 38,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,525.08 : 105,789.15 = 25,550.45 : x
  2. Step 2: Convert to fraction form
    70,525.08/105,789.15 = 25,550.45/x
  3. Step 3: Cross multiply
    70,525.08x = 105,789.15 × 25,550.45
  4. Step 4: Simplify right side
    70,525.08x = 2,702,960,387.62
  5. Step 5: Solve for x
    x = 2,702,960,387.62/70,525.08
  6. Step 6: Final answer
    x = 38,326.23

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Similar ratio
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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.