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Finding the Fourth Proportional to 6,603.94, 9,111.94 and 4,479.76

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Solution

The fourth proportional to 6,603.94, 9,111.94 and 4,479.76 is: 6,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.94 : 9,111.94 = 4,479.76 : x
  2. Step 2: Convert to fraction form
    6,603.94/9,111.94 = 4,479.76/x
  3. Step 3: Cross multiply
    6,603.94x = 9,111.94 × 4,479.76
  4. Step 4: Simplify right side
    6,603.94x = 40,819,304.33
  5. Step 5: Solve for x
    x = 40,819,304.33/6,603.94
  6. Step 6: Final answer
    x = 6,181.05

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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.