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Finding the Fourth Proportional to 15,216.57, 22,835.07 and 5,355.90

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Solution

The fourth proportional to 15,216.57, 22,835.07 and 5,355.90 is: 8,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.57 : 22,835.07 = 5,355.90 : x
  2. Step 2: Convert to fraction form
    15,216.57/22,835.07 = 5,355.90/x
  3. Step 3: Cross multiply
    15,216.57x = 22,835.07 × 5,355.90
  4. Step 4: Simplify right side
    15,216.57x = 122,302,351.41
  5. Step 5: Solve for x
    x = 122,302,351.41/15,216.57
  6. Step 6: Final answer
    x = 8,037.45

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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.