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Finding the Fourth Proportional to 5,530.95, 8,253.94 and 4,939.77

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Solution

The fourth proportional to 5,530.95, 8,253.94 and 4,939.77 is: 7,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.95 : 8,253.94 = 4,939.77 : x
  2. Step 2: Convert to fraction form
    5,530.95/8,253.94 = 4,939.77/x
  3. Step 3: Cross multiply
    5,530.95x = 8,253.94 × 4,939.77
  4. Step 4: Simplify right side
    5,530.95x = 40,772,565.19
  5. Step 5: Solve for x
    x = 40,772,565.19/5,530.95
  6. Step 6: Final answer
    x = 7,371.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.