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Finding the Fourth Proportional to 6,147.67, 8,468.95 and 4,888.32

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Solution

The fourth proportional to 6,147.67, 8,468.95 and 4,888.32 is: 6,734.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147.67 : 8,468.95 = 4,888.32 : x
  2. Step 2: Convert to fraction form
    6,147.67/8,468.95 = 4,888.32/x
  3. Step 3: Cross multiply
    6,147.67x = 8,468.95 × 4,888.32
  4. Step 4: Simplify right side
    6,147.67x = 41,398,937.66
  5. Step 5: Solve for x
    x = 41,398,937.66/6,147.67
  6. Step 6: Final answer
    x = 6,734.09

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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.