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Finding the Fourth Proportional to 5,479.61, 7,559.84 and 4,949.25

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Solution

The fourth proportional to 5,479.61, 7,559.84 and 4,949.25 is: 6,828.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.61 : 7,559.84 = 4,949.25 : x
  2. Step 2: Convert to fraction form
    5,479.61/7,559.84 = 4,949.25/x
  3. Step 3: Cross multiply
    5,479.61x = 7,559.84 × 4,949.25
  4. Step 4: Simplify right side
    5,479.61x = 37,415,513.37
  5. Step 5: Solve for x
    x = 37,415,513.37/5,479.61
  6. Step 6: Final answer
    x = 6,828.14

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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.