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Finding the Fourth Proportional to 25,327.90, 37,991.76 and 6,859.90

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Solution

The fourth proportional to 25,327.90, 37,991.76 and 6,859.90 is: 10,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,327.90 : 37,991.76 = 6,859.90 : x
  2. Step 2: Convert to fraction form
    25,327.90/37,991.76 = 6,859.90/x
  3. Step 3: Cross multiply
    25,327.90x = 37,991.76 × 6,859.90
  4. Step 4: Simplify right side
    25,327.90x = 260,619,674.42
  5. Step 5: Solve for x
    x = 260,619,674.42/25,327.90
  6. Step 6: Final answer
    x = 10,289.83

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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.