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Finding the Fourth Proportional to 35,212.68, 52,820.82 and 8,917.56

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Solution

The fourth proportional to 35,212.68, 52,820.82 and 8,917.56 is: 13,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,212.68 : 52,820.82 = 8,917.56 : x
  2. Step 2: Convert to fraction form
    35,212.68/52,820.82 = 8,917.56/x
  3. Step 3: Cross multiply
    35,212.68x = 52,820.82 × 8,917.56
  4. Step 4: Simplify right side
    35,212.68x = 471,032,831.60
  5. Step 5: Solve for x
    x = 471,032,831.60/35,212.68
  6. Step 6: Final answer
    x = 13,376.80

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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.