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Finding the Fourth Proportional to 25,990.62, 38,976.27 and 9,346.11

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Solution

The fourth proportional to 25,990.62, 38,976.27 and 9,346.11 is: 14,015.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.62 : 38,976.27 = 9,346.11 : x
  2. Step 2: Convert to fraction form
    25,990.62/38,976.27 = 9,346.11/x
  3. Step 3: Cross multiply
    25,990.62x = 38,976.27 × 9,346.11
  4. Step 4: Simplify right side
    25,990.62x = 364,276,506.81
  5. Step 5: Solve for x
    x = 364,276,506.81/25,990.62
  6. Step 6: Final answer
    x = 14,015.69

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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.