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Finding the Fourth Proportional to 8,796.42, 12,140.58 and 5,259.96

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Solution

The fourth proportional to 8,796.42, 12,140.58 and 5,259.96 is: 7,259.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.42 : 12,140.58 = 5,259.96 : x
  2. Step 2: Convert to fraction form
    8,796.42/12,140.58 = 5,259.96/x
  3. Step 3: Cross multiply
    8,796.42x = 12,140.58 × 5,259.96
  4. Step 4: Simplify right side
    8,796.42x = 63,858,965.18
  5. Step 5: Solve for x
    x = 63,858,965.18/8,796.42
  6. Step 6: Final answer
    x = 7,259.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.