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Finding the Fourth Proportional to 32,808.60, 49,212.90 and 20,342.70

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Solution

The fourth proportional to 32,808.60, 49,212.90 and 20,342.70 is: 30,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,808.60 : 49,212.90 = 20,342.70 : x
  2. Step 2: Convert to fraction form
    32,808.60/49,212.90 = 20,342.70/x
  3. Step 3: Cross multiply
    32,808.60x = 49,212.90 × 20,342.70
  4. Step 4: Simplify right side
    32,808.60x = 1,001,123,260.83
  5. Step 5: Solve for x
    x = 1,001,123,260.83/32,808.60
  6. Step 6: Final answer
    x = 30,514.05

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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.