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Finding the Fourth Proportional to 4,650.24, 6,415.38 and 2,787.24

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Solution

The fourth proportional to 4,650.24, 6,415.38 and 2,787.24 is: 3,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,650.24 : 6,415.38 = 2,787.24 : x
  2. Step 2: Convert to fraction form
    4,650.24/6,415.38 = 2,787.24/x
  3. Step 3: Cross multiply
    4,650.24x = 6,415.38 × 2,787.24
  4. Step 4: Simplify right side
    4,650.24x = 17,881,203.75
  5. Step 5: Solve for x
    x = 17,881,203.75/4,650.24
  6. Step 6: Final answer
    x = 3,845.22

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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.