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Finding the Fourth Proportional to 73,135.76, 109,703.63 and 25,739.69

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Solution

The fourth proportional to 73,135.76, 109,703.63 and 25,739.69 is: 38,609.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,135.76 : 109,703.63 = 25,739.69 : x
  2. Step 2: Convert to fraction form
    73,135.76/109,703.63 = 25,739.69/x
  3. Step 3: Cross multiply
    73,135.76x = 109,703.63 × 25,739.69
  4. Step 4: Simplify right side
    73,135.76x = 2,823,736,943.91
  5. Step 5: Solve for x
    x = 2,823,736,943.91/73,135.76
  6. Step 6: Final answer
    x = 38,609.53

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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.