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Finding the Fourth Proportional to 3,432.05, 4,732.05 and 2,899.98

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Solution

The fourth proportional to 3,432.05, 4,732.05 and 2,899.98 is: 3,998.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.05 : 4,732.05 = 2,899.98 : x
  2. Step 2: Convert to fraction form
    3,432.05/4,732.05 = 2,899.98/x
  3. Step 3: Cross multiply
    3,432.05x = 4,732.05 × 2,899.98
  4. Step 4: Simplify right side
    3,432.05x = 13,722,850.36
  5. Step 5: Solve for x
    x = 13,722,850.36/3,432.05
  6. Step 6: Final answer
    x = 3,998.44

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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.