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Finding the Fourth Proportional to 4,605.79, 6,903.91 and 2,627.20

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Solution

The fourth proportional to 4,605.79, 6,903.91 and 2,627.20 is: 3,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,605.79 : 6,903.91 = 2,627.20 : x
  2. Step 2: Convert to fraction form
    4,605.79/6,903.91 = 2,627.20/x
  3. Step 3: Cross multiply
    4,605.79x = 6,903.91 × 2,627.20
  4. Step 4: Simplify right side
    4,605.79x = 18,137,952.35
  5. Step 5: Solve for x
    x = 18,137,952.35/4,605.79
  6. Step 6: Final answer
    x = 3,938.08

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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.