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Finding the Fourth Proportional to 8,712.58, 13,060.50 and 5,583.82

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Solution

The fourth proportional to 8,712.58, 13,060.50 and 5,583.82 is: 8,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.58 : 13,060.50 = 5,583.82 : x
  2. Step 2: Convert to fraction form
    8,712.58/13,060.50 = 5,583.82/x
  3. Step 3: Cross multiply
    8,712.58x = 13,060.50 × 5,583.82
  4. Step 4: Simplify right side
    8,712.58x = 72,927,481.11
  5. Step 5: Solve for x
    x = 72,927,481.11/8,712.58
  6. Step 6: Final answer
    x = 8,370.37

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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.