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Finding the Fourth Proportional to 21,616.03, 32,421.84 and 5,820.42

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Solution

The fourth proportional to 21,616.03, 32,421.84 and 5,820.42 is: 8,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.03 : 32,421.84 = 5,820.42 : x
  2. Step 2: Convert to fraction form
    21,616.03/32,421.84 = 5,820.42/x
  3. Step 3: Cross multiply
    21,616.03x = 32,421.84 × 5,820.42
  4. Step 4: Simplify right side
    21,616.03x = 188,708,825.73
  5. Step 5: Solve for x
    x = 188,708,825.73/21,616.03
  6. Step 6: Final answer
    x = 8,730.04

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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.