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Finding the Fourth Proportional to 7,673.64, 10,591.76 and 4,487.91

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Solution

The fourth proportional to 7,673.64, 10,591.76 and 4,487.91 is: 6,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,673.64 : 10,591.76 = 4,487.91 : x
  2. Step 2: Convert to fraction form
    7,673.64/10,591.76 = 4,487.91/x
  3. Step 3: Cross multiply
    7,673.64x = 10,591.76 × 4,487.91
  4. Step 4: Simplify right side
    7,673.64x = 47,534,837.12
  5. Step 5: Solve for x
    x = 47,534,837.12/7,673.64
  6. Step 6: Final answer
    x = 6,194.56

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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.