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Finding the Fourth Proportional to 21,508.26, 32,226.03 and 10,420.26

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Solution

The fourth proportional to 21,508.26, 32,226.03 and 10,420.26 is: 15,612.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508.26 : 32,226.03 = 10,420.26 : x
  2. Step 2: Convert to fraction form
    21,508.26/32,226.03 = 10,420.26/x
  3. Step 3: Cross multiply
    21,508.26x = 32,226.03 × 10,420.26
  4. Step 4: Simplify right side
    21,508.26x = 335,803,611.37
  5. Step 5: Solve for x
    x = 335,803,611.37/21,508.26
  6. Step 6: Final answer
    x = 15,612.77

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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.