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Finding the Fourth Proportional to 7,363.77, 10,160.25 and 4,978.19

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Solution

The fourth proportional to 7,363.77, 10,160.25 and 4,978.19 is: 6,868.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,363.77 : 10,160.25 = 4,978.19 : x
  2. Step 2: Convert to fraction form
    7,363.77/10,160.25 = 4,978.19/x
  3. Step 3: Cross multiply
    7,363.77x = 10,160.25 × 4,978.19
  4. Step 4: Simplify right side
    7,363.77x = 50,579,604.15
  5. Step 5: Solve for x
    x = 50,579,604.15/7,363.77
  6. Step 6: Final answer
    x = 6,868.71

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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.