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Finding the Fourth Proportional to 43,199.63, 64,799.45 and 18,575.63

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Solution

The fourth proportional to 43,199.63, 64,799.45 and 18,575.63 is: 27,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,199.63 : 64,799.45 = 18,575.63 : x
  2. Step 2: Convert to fraction form
    43,199.63/64,799.45 = 18,575.63/x
  3. Step 3: Cross multiply
    43,199.63x = 64,799.45 × 18,575.63
  4. Step 4: Simplify right side
    43,199.63x = 1,203,690,607.40
  5. Step 5: Solve for x
    x = 1,203,690,607.40/43,199.63
  6. Step 6: Final answer
    x = 27,863.45

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Double scale
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Similar ratio
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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.