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Finding the Fourth Proportional to 8,969.70, 13,428.24 and 6,292.01

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Solution

The fourth proportional to 8,969.70, 13,428.24 and 6,292.01 is: 9,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.70 : 13,428.24 = 6,292.01 : x
  2. Step 2: Convert to fraction form
    8,969.70/13,428.24 = 6,292.01/x
  3. Step 3: Cross multiply
    8,969.70x = 13,428.24 × 6,292.01
  4. Step 4: Simplify right side
    8,969.70x = 84,490,620.36
  5. Step 5: Solve for x
    x = 84,490,620.36/8,969.70
  6. Step 6: Final answer
    x = 9,419.56

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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.