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Finding the Fourth Proportional to 20,591.01, 30,886.58 and 5,008.63

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Solution

The fourth proportional to 20,591.01, 30,886.58 and 5,008.63 is: 7,512.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.01 : 30,886.58 = 5,008.63 : x
  2. Step 2: Convert to fraction form
    20,591.01/30,886.58 = 5,008.63/x
  3. Step 3: Cross multiply
    20,591.01x = 30,886.58 × 5,008.63
  4. Step 4: Simplify right side
    20,591.01x = 154,699,451.19
  5. Step 5: Solve for x
    x = 154,699,451.19/20,591.01
  6. Step 6: Final answer
    x = 7,512.96

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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.