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Finding the Fourth Proportional to 25,367.78, 38,050.78 and 6,647.67

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Solution

The fourth proportional to 25,367.78, 38,050.78 and 6,647.67 is: 9,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,367.78 : 38,050.78 = 6,647.67 : x
  2. Step 2: Convert to fraction form
    25,367.78/38,050.78 = 6,647.67/x
  3. Step 3: Cross multiply
    25,367.78x = 38,050.78 × 6,647.67
  4. Step 4: Simplify right side
    25,367.78x = 252,949,024.53
  5. Step 5: Solve for x
    x = 252,949,024.53/25,367.78
  6. Step 6: Final answer
    x = 9,971.27

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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.