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Finding the Fourth Proportional to 4,936.95, 7,407.15 and 3,085.90

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Solution

The fourth proportional to 4,936.95, 7,407.15 and 3,085.90 is: 4,629.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.95 : 7,407.15 = 3,085.90 : x
  2. Step 2: Convert to fraction form
    4,936.95/7,407.15 = 3,085.90/x
  3. Step 3: Cross multiply
    4,936.95x = 7,407.15 × 3,085.90
  4. Step 4: Simplify right side
    4,936.95x = 22,857,694.10
  5. Step 5: Solve for x
    x = 22,857,694.10/4,936.95
  6. Step 6: Final answer
    x = 4,629.92

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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.