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Finding the Fourth Proportional to 8,917.54, 13,372.44 and 4,756.62

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Solution

The fourth proportional to 8,917.54, 13,372.44 and 4,756.62 is: 7,132.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.54 : 13,372.44 = 4,756.62 : x
  2. Step 2: Convert to fraction form
    8,917.54/13,372.44 = 4,756.62/x
  3. Step 3: Cross multiply
    8,917.54x = 13,372.44 × 4,756.62
  4. Step 4: Simplify right side
    8,917.54x = 63,607,674.62
  5. Step 5: Solve for x
    x = 63,607,674.62/8,917.54
  6. Step 6: Final answer
    x = 7,132.87

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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.