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Finding the Fourth Proportional to 32,848.80, 45,318.48 and 20,251.68

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Solution

The fourth proportional to 32,848.80, 45,318.48 and 20,251.68 is: 27,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,848.80 : 45,318.48 = 20,251.68 : x
  2. Step 2: Convert to fraction form
    32,848.80/45,318.48 = 20,251.68/x
  3. Step 3: Cross multiply
    32,848.80x = 45,318.48 × 20,251.68
  4. Step 4: Simplify right side
    32,848.80x = 917,775,355.05
  5. Step 5: Solve for x
    x = 917,775,355.05/32,848.80
  6. Step 6: Final answer
    x = 27,939.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.