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Finding the Fourth Proportional to 2,967.91, 4,451.99 and 993.69

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Solution

The fourth proportional to 2,967.91, 4,451.99 and 993.69 is: 1,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,967.91 : 4,451.99 = 993.69 : x
  2. Step 2: Convert to fraction form
    2,967.91/4,451.99 = 993.69/x
  3. Step 3: Cross multiply
    2,967.91x = 4,451.99 × 993.69
  4. Step 4: Simplify right side
    2,967.91x = 4,423,897.94
  5. Step 5: Solve for x
    x = 4,423,897.94/2,967.91
  6. Step 6: Final answer
    x = 1,490.58

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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.