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Finding the Fourth Proportional to 3,468.93, 4,787.22 and 2,124.51

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Solution

The fourth proportional to 3,468.93, 4,787.22 and 2,124.51 is: 2,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.93 : 4,787.22 = 2,124.51 : x
  2. Step 2: Convert to fraction form
    3,468.93/4,787.22 = 2,124.51/x
  3. Step 3: Cross multiply
    3,468.93x = 4,787.22 × 2,124.51
  4. Step 4: Simplify right side
    3,468.93x = 10,170,496.76
  5. Step 5: Solve for x
    x = 10,170,496.76/3,468.93
  6. Step 6: Final answer
    x = 2,931.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.