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Finding the Fourth Proportional to 25,993.71, 38,994.66 and 8,459.46

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Solution

The fourth proportional to 25,993.71, 38,994.66 and 8,459.46 is: 12,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,993.71 : 38,994.66 = 8,459.46 : x
  2. Step 2: Convert to fraction form
    25,993.71/38,994.66 = 8,459.46/x
  3. Step 3: Cross multiply
    25,993.71x = 38,994.66 × 8,459.46
  4. Step 4: Simplify right side
    25,993.71x = 329,873,766.48
  5. Step 5: Solve for x
    x = 329,873,766.48/25,993.71
  6. Step 6: Final answer
    x = 12,690.52

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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.