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Finding the Fourth Proportional to 4,836.72, 7,255.80 and 2,240.40

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Solution

The fourth proportional to 4,836.72, 7,255.80 and 2,240.40 is: 3,360.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,836.72 : 7,255.80 = 2,240.40 : x
  2. Step 2: Convert to fraction form
    4,836.72/7,255.80 = 2,240.40/x
  3. Step 3: Cross multiply
    4,836.72x = 7,255.80 × 2,240.40
  4. Step 4: Simplify right side
    4,836.72x = 16,255,894.32
  5. Step 5: Solve for x
    x = 16,255,894.32/4,836.72
  6. Step 6: Final answer
    x = 3,360.93

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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.