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Finding the Fourth Proportional to 4,603.86, 6,899.63 and 2,520.72

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Solution

The fourth proportional to 4,603.86, 6,899.63 and 2,520.72 is: 3,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,603.86 : 6,899.63 = 2,520.72 : x
  2. Step 2: Convert to fraction form
    4,603.86/6,899.63 = 2,520.72/x
  3. Step 3: Cross multiply
    4,603.86x = 6,899.63 × 2,520.72
  4. Step 4: Simplify right side
    4,603.86x = 17,392,022.73
  5. Step 5: Solve for x
    x = 17,392,022.73/4,603.86
  6. Step 6: Final answer
    x = 3,777.70

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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.