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Finding the Fourth Proportional to 6,672.80, 9,208.62 and 4,319.04

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Solution

The fourth proportional to 6,672.80, 9,208.62 and 4,319.04 is: 5,960.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.80 : 9,208.62 = 4,319.04 : x
  2. Step 2: Convert to fraction form
    6,672.80/9,208.62 = 4,319.04/x
  3. Step 3: Cross multiply
    6,672.80x = 9,208.62 × 4,319.04
  4. Step 4: Simplify right side
    6,672.80x = 39,772,380.86
  5. Step 5: Solve for x
    x = 39,772,380.86/6,672.80
  6. Step 6: Final answer
    x = 5,960.38

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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.