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Finding the Fourth Proportional to 20,332.68, 30,503.52 and 6,481.68

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Solution

The fourth proportional to 20,332.68, 30,503.52 and 6,481.68 is: 9,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.68 : 30,503.52 = 6,481.68 : x
  2. Step 2: Convert to fraction form
    20,332.68/30,503.52 = 6,481.68/x
  3. Step 3: Cross multiply
    20,332.68x = 30,503.52 × 6,481.68
  4. Step 4: Simplify right side
    20,332.68x = 197,714,055.51
  5. Step 5: Solve for x
    x = 197,714,055.51/20,332.68
  6. Step 6: Final answer
    x = 9,723.95

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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.