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Finding the Fourth Proportional to 4,971.91, 7,460.49 and 2,200.50

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Solution

The fourth proportional to 4,971.91, 7,460.49 and 2,200.50 is: 3,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.91 : 7,460.49 = 2,200.50 : x
  2. Step 2: Convert to fraction form
    4,971.91/7,460.49 = 2,200.50/x
  3. Step 3: Cross multiply
    4,971.91x = 7,460.49 × 2,200.50
  4. Step 4: Simplify right side
    4,971.91x = 16,416,808.25
  5. Step 5: Solve for x
    x = 16,416,808.25/4,971.91
  6. Step 6: Final answer
    x = 3,301.91

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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.