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Finding the Fourth Proportional to 4,992.95, 6,890.57 and 2,755.33

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Solution

The fourth proportional to 4,992.95, 6,890.57 and 2,755.33 is: 3,802.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.95 : 6,890.57 = 2,755.33 : x
  2. Step 2: Convert to fraction form
    4,992.95/6,890.57 = 2,755.33/x
  3. Step 3: Cross multiply
    4,992.95x = 6,890.57 × 2,755.33
  4. Step 4: Simplify right side
    4,992.95x = 18,985,746.01
  5. Step 5: Solve for x
    x = 18,985,746.01/4,992.95
  6. Step 6: Final answer
    x = 3,802.51

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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.