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Finding the Fourth Proportional to 32,944.44, 45,482.94 and 20,386.20

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Solution

The fourth proportional to 32,944.44, 45,482.94 and 20,386.20 is: 28,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,944.44 : 45,482.94 = 20,386.20 : x
  2. Step 2: Convert to fraction form
    32,944.44/45,482.94 = 20,386.20/x
  3. Step 3: Cross multiply
    32,944.44x = 45,482.94 × 20,386.20
  4. Step 4: Simplify right side
    32,944.44x = 927,224,311.43
  5. Step 5: Solve for x
    x = 927,224,311.43/32,944.44
  6. Step 6: Final answer
    x = 28,145.09

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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.