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Finding the Fourth Proportional to 6,671.53, 9,208.25 and 4,155.58

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Solution

The fourth proportional to 6,671.53, 9,208.25 and 4,155.58 is: 5,735.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,671.53 : 9,208.25 = 4,155.58 : x
  2. Step 2: Convert to fraction form
    6,671.53/9,208.25 = 4,155.58/x
  3. Step 3: Cross multiply
    6,671.53x = 9,208.25 × 4,155.58
  4. Step 4: Simplify right side
    6,671.53x = 38,265,619.54
  5. Step 5: Solve for x
    x = 38,265,619.54/6,671.53
  6. Step 6: Final answer
    x = 5,735.66

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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.