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Finding the Fourth Proportional to 4,968.30, 6,851.88 and 4,078.92

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Solution

The fourth proportional to 4,968.30, 6,851.88 and 4,078.92 is: 5,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,968.30 : 6,851.88 = 4,078.92 : x
  2. Step 2: Convert to fraction form
    4,968.30/6,851.88 = 4,078.92/x
  3. Step 3: Cross multiply
    4,968.30x = 6,851.88 × 4,078.92
  4. Step 4: Simplify right side
    4,968.30x = 27,948,270.37
  5. Step 5: Solve for x
    x = 27,948,270.37/4,968.30
  6. Step 6: Final answer
    x = 5,625.32

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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.