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Finding the Fourth Proportional to 4,992.86, 7,491.18 and 2,070.92

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Solution

The fourth proportional to 4,992.86, 7,491.18 and 2,070.92 is: 3,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.86 : 7,491.18 = 2,070.92 : x
  2. Step 2: Convert to fraction form
    4,992.86/7,491.18 = 2,070.92/x
  3. Step 3: Cross multiply
    4,992.86x = 7,491.18 × 2,070.92
  4. Step 4: Simplify right side
    4,992.86x = 15,513,634.49
  5. Step 5: Solve for x
    x = 15,513,634.49/4,992.86
  6. Step 6: Final answer
    x = 3,107.16

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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.