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Finding the Fourth Proportional to 25,910.55, 38,856.06 and 8,375.67

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Solution

The fourth proportional to 25,910.55, 38,856.06 and 8,375.67 is: 12,560.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,910.55 : 38,856.06 = 8,375.67 : x
  2. Step 2: Convert to fraction form
    25,910.55/38,856.06 = 8,375.67/x
  3. Step 3: Cross multiply
    25,910.55x = 38,856.06 × 8,375.67
  4. Step 4: Simplify right side
    25,910.55x = 325,445,536.06
  5. Step 5: Solve for x
    x = 325,445,536.06/25,910.55
  6. Step 6: Final answer
    x = 12,560.35

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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.