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Finding the Fourth Proportional to 5,984.16, 8,969.76 and 3,905.76

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Solution

The fourth proportional to 5,984.16, 8,969.76 and 3,905.76 is: 5,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,984.16 : 8,969.76 = 3,905.76 : x
  2. Step 2: Convert to fraction form
    5,984.16/8,969.76 = 3,905.76/x
  3. Step 3: Cross multiply
    5,984.16x = 8,969.76 × 3,905.76
  4. Step 4: Simplify right side
    5,984.16x = 35,033,729.82
  5. Step 5: Solve for x
    x = 35,033,729.82/5,984.16
  6. Step 6: Final answer
    x = 5,854.41

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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.