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Finding the Fourth Proportional to 24,208.60, 36,312.90 and 20,112.60

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Solution

The fourth proportional to 24,208.60, 36,312.90 and 20,112.60 is: 30,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,208.60 : 36,312.90 = 20,112.60 : x
  2. Step 2: Convert to fraction form
    24,208.60/36,312.90 = 20,112.60/x
  3. Step 3: Cross multiply
    24,208.60x = 36,312.90 × 20,112.60
  4. Step 4: Simplify right side
    24,208.60x = 730,346,832.54
  5. Step 5: Solve for x
    x = 730,346,832.54/24,208.60
  6. Step 6: Final answer
    x = 30,168.90

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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.