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Finding the Fourth Proportional to 6,293.89, 8,691.41 and 4,059.64

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Solution

The fourth proportional to 6,293.89, 8,691.41 and 4,059.64 is: 5,606.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,293.89 : 8,691.41 = 4,059.64 : x
  2. Step 2: Convert to fraction form
    6,293.89/8,691.41 = 4,059.64/x
  3. Step 3: Cross multiply
    6,293.89x = 8,691.41 × 4,059.64
  4. Step 4: Simplify right side
    6,293.89x = 35,283,931.94
  5. Step 5: Solve for x
    x = 35,283,931.94/6,293.89
  6. Step 6: Final answer
    x = 5,606.07

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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.