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Finding the Fourth Proportional to 25,626.90, 38,440.35 and 6,906.90

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Solution

The fourth proportional to 25,626.90, 38,440.35 and 6,906.90 is: 10,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,626.90 : 38,440.35 = 6,906.90 : x
  2. Step 2: Convert to fraction form
    25,626.90/38,440.35 = 6,906.90/x
  3. Step 3: Cross multiply
    25,626.90x = 38,440.35 × 6,906.90
  4. Step 4: Simplify right side
    25,626.90x = 265,503,653.42
  5. Step 5: Solve for x
    x = 265,503,653.42/25,626.90
  6. Step 6: Final answer
    x = 10,360.35

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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.