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Finding the Fourth Proportional to 8,898.57, 13,345.11 and 3,053.79

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Solution

The fourth proportional to 8,898.57, 13,345.11 and 3,053.79 is: 4,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.57 : 13,345.11 = 3,053.79 : x
  2. Step 2: Convert to fraction form
    8,898.57/13,345.11 = 3,053.79/x
  3. Step 3: Cross multiply
    8,898.57x = 13,345.11 × 3,053.79
  4. Step 4: Simplify right side
    8,898.57x = 40,753,163.47
  5. Step 5: Solve for x
    x = 40,753,163.47/8,898.57
  6. Step 6: Final answer
    x = 4,579.74

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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.