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Finding the Fourth Proportional to 2,999.61, 4,491.54 and 2,411.49

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Solution

The fourth proportional to 2,999.61, 4,491.54 and 2,411.49 is: 3,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.61 : 4,491.54 = 2,411.49 : x
  2. Step 2: Convert to fraction form
    2,999.61/4,491.54 = 2,411.49/x
  3. Step 3: Cross multiply
    2,999.61x = 4,491.54 × 2,411.49
  4. Step 4: Simplify right side
    2,999.61x = 10,831,303.79
  5. Step 5: Solve for x
    x = 10,831,303.79/2,999.61
  6. Step 6: Final answer
    x = 3,610.90

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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.