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Finding the Fourth Proportional to 30,998.52, 42,776.46 and 16,850.52

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Solution

The fourth proportional to 30,998.52, 42,776.46 and 16,850.52 is: 23,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,998.52 : 42,776.46 = 16,850.52 : x
  2. Step 2: Convert to fraction form
    30,998.52/42,776.46 = 16,850.52/x
  3. Step 3: Cross multiply
    30,998.52x = 42,776.46 × 16,850.52
  4. Step 4: Simplify right side
    30,998.52x = 720,805,594.76
  5. Step 5: Solve for x
    x = 720,805,594.76/30,998.52
  6. Step 6: Final answer
    x = 23,252.90

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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.