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Finding the Fourth Proportional to 4,671.72, 7,007.61 and 1,208.97

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Solution

The fourth proportional to 4,671.72, 7,007.61 and 1,208.97 is: 1,813.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671.72 : 7,007.61 = 1,208.97 : x
  2. Step 2: Convert to fraction form
    4,671.72/7,007.61 = 1,208.97/x
  3. Step 3: Cross multiply
    4,671.72x = 7,007.61 × 1,208.97
  4. Step 4: Simplify right side
    4,671.72x = 8,472,007.78
  5. Step 5: Solve for x
    x = 8,472,007.78/4,671.72
  6. Step 6: Final answer
    x = 1,813.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.