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Finding the Fourth Proportional to 8,572.99, 12,848.89 and 5,059.44

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Solution

The fourth proportional to 8,572.99, 12,848.89 and 5,059.44 is: 7,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.99 : 12,848.89 = 5,059.44 : x
  2. Step 2: Convert to fraction form
    8,572.99/12,848.89 = 5,059.44/x
  3. Step 3: Cross multiply
    8,572.99x = 12,848.89 × 5,059.44
  4. Step 4: Simplify right side
    8,572.99x = 65,008,188.02
  5. Step 5: Solve for x
    x = 65,008,188.02/8,572.99
  6. Step 6: Final answer
    x = 7,582.91

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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.