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Finding the Fourth Proportional to 19,493.25, 29,252.85 and 7,181.25

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Solution

The fourth proportional to 19,493.25, 29,252.85 and 7,181.25 is: 10,776.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,493.25 : 29,252.85 = 7,181.25 : x
  2. Step 2: Convert to fraction form
    19,493.25/29,252.85 = 7,181.25/x
  3. Step 3: Cross multiply
    19,493.25x = 29,252.85 × 7,181.25
  4. Step 4: Simplify right side
    19,493.25x = 210,072,029.06
  5. Step 5: Solve for x
    x = 210,072,029.06/19,493.25
  6. Step 6: Final answer
    x = 10,776.65

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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.