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Finding the Fourth Proportional to 20,616.03, 30,928.16 and 6,575.58

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Solution

The fourth proportional to 20,616.03, 30,928.16 and 6,575.58 is: 9,864.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.03 : 30,928.16 = 6,575.58 : x
  2. Step 2: Convert to fraction form
    20,616.03/30,928.16 = 6,575.58/x
  3. Step 3: Cross multiply
    20,616.03x = 30,928.16 × 6,575.58
  4. Step 4: Simplify right side
    20,616.03x = 203,370,557.45
  5. Step 5: Solve for x
    x = 203,370,557.45/20,616.03
  6. Step 6: Final answer
    x = 9,864.68

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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.