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Finding the Fourth Proportional to 49,892.87, 74,799.56 and 28,808.98

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Solution

The fourth proportional to 49,892.87, 74,799.56 and 28,808.98 is: 43,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,892.87 : 74,799.56 = 28,808.98 : x
  2. Step 2: Convert to fraction form
    49,892.87/74,799.56 = 28,808.98/x
  3. Step 3: Cross multiply
    49,892.87x = 74,799.56 × 28,808.98
  4. Step 4: Simplify right side
    49,892.87x = 2,154,898,913.07
  5. Step 5: Solve for x
    x = 2,154,898,913.07/49,892.87
  6. Step 6: Final answer
    x = 43,190.52

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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.