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Finding the Fourth Proportional to 25,847.21, 38,746.19 and 8,304.72

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Solution

The fourth proportional to 25,847.21, 38,746.19 and 8,304.72 is: 12,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,847.21 : 38,746.19 = 8,304.72 : x
  2. Step 2: Convert to fraction form
    25,847.21/38,746.19 = 8,304.72/x
  3. Step 3: Cross multiply
    25,847.21x = 38,746.19 × 8,304.72
  4. Step 4: Simplify right side
    25,847.21x = 321,776,217.49
  5. Step 5: Solve for x
    x = 321,776,217.49/25,847.21
  6. Step 6: Final answer
    x = 12,449.17

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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.