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Finding the Fourth Proportional to 21,626.56, 32,443.56 and 6,835.18

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Solution

The fourth proportional to 21,626.56, 32,443.56 and 6,835.18 is: 10,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,626.56 : 32,443.56 = 6,835.18 : x
  2. Step 2: Convert to fraction form
    21,626.56/32,443.56 = 6,835.18/x
  3. Step 3: Cross multiply
    21,626.56x = 32,443.56 × 6,835.18
  4. Step 4: Simplify right side
    21,626.56x = 221,757,572.44
  5. Step 5: Solve for x
    x = 221,757,572.44/21,626.56
  6. Step 6: Final answer
    x = 10,253.95

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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.