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Finding the Fourth Proportional to 3,467.88, 4,787.28 and 2,051.12

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Solution

The fourth proportional to 3,467.88, 4,787.28 and 2,051.12 is: 2,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.88 : 4,787.28 = 2,051.12 : x
  2. Step 2: Convert to fraction form
    3,467.88/4,787.28 = 2,051.12/x
  3. Step 3: Cross multiply
    3,467.88x = 4,787.28 × 2,051.12
  4. Step 4: Simplify right side
    3,467.88x = 9,819,285.75
  5. Step 5: Solve for x
    x = 9,819,285.75/3,467.88
  6. Step 6: Final answer
    x = 2,831.50

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1.5x scale

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.