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Finding the Fourth Proportional to 10,579.04, 15,864.46 and 5,645.99

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Solution

The fourth proportional to 10,579.04, 15,864.46 and 5,645.99 is: 8,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.04 : 15,864.46 = 5,645.99 : x
  2. Step 2: Convert to fraction form
    10,579.04/15,864.46 = 5,645.99/x
  3. Step 3: Cross multiply
    10,579.04x = 15,864.46 × 5,645.99
  4. Step 4: Simplify right side
    10,579.04x = 89,570,474.96
  5. Step 5: Solve for x
    x = 89,570,474.96/10,579.04
  6. Step 6: Final answer
    x = 8,466.79

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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.