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Finding the Fourth Proportional to 2,999.51, 4,497.21 and 1,355.16

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Solution

The fourth proportional to 2,999.51, 4,497.21 and 1,355.16 is: 2,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.51 : 4,497.21 = 1,355.16 : x
  2. Step 2: Convert to fraction form
    2,999.51/4,497.21 = 1,355.16/x
  3. Step 3: Cross multiply
    2,999.51x = 4,497.21 × 1,355.16
  4. Step 4: Simplify right side
    2,999.51x = 6,094,439.10
  5. Step 5: Solve for x
    x = 6,094,439.10/2,999.51
  6. Step 6: Final answer
    x = 2,031.81

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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.