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Finding the Fourth Proportional to 52,796.79, 72,857.61 and 28,923.66

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Solution

The fourth proportional to 52,796.79, 72,857.61 and 28,923.66 is: 39,913.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,796.79 : 72,857.61 = 28,923.66 : x
  2. Step 2: Convert to fraction form
    52,796.79/72,857.61 = 28,923.66/x
  3. Step 3: Cross multiply
    52,796.79x = 72,857.61 × 28,923.66
  4. Step 4: Simplify right side
    52,796.79x = 2,107,308,740.05
  5. Step 5: Solve for x
    x = 2,107,308,740.05/52,796.79
  6. Step 6: Final answer
    x = 39,913.58

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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.