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Finding the Fourth Proportional to 4,985.17, 7,473.72 and 1,864.73

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Solution

The fourth proportional to 4,985.17, 7,473.72 and 1,864.73 is: 2,795.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.17 : 7,473.72 = 1,864.73 : x
  2. Step 2: Convert to fraction form
    4,985.17/7,473.72 = 1,864.73/x
  3. Step 3: Cross multiply
    4,985.17x = 7,473.72 × 1,864.73
  4. Step 4: Simplify right side
    4,985.17x = 13,936,469.90
  5. Step 5: Solve for x
    x = 13,936,469.90/4,985.17
  6. Step 6: Final answer
    x = 2,795.59

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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.