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Finding the Fourth Proportional to 4,671.75, 6,445.13 and 2,993.43

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Solution

The fourth proportional to 4,671.75, 6,445.13 and 2,993.43 is: 4,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671.75 : 6,445.13 = 2,993.43 : x
  2. Step 2: Convert to fraction form
    4,671.75/6,445.13 = 2,993.43/x
  3. Step 3: Cross multiply
    4,671.75x = 6,445.13 × 2,993.43
  4. Step 4: Simplify right side
    4,671.75x = 19,293,030.53
  5. Step 5: Solve for x
    x = 19,293,030.53/4,671.75
  6. Step 6: Final answer
    x = 4,129.72

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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.