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Finding the Fourth Proportional to 57,920.93, 79,907.13 and 35,241.74

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Solution

The fourth proportional to 57,920.93, 79,907.13 and 35,241.74 is: 48,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,920.93 : 79,907.13 = 35,241.74 : x
  2. Step 2: Convert to fraction form
    57,920.93/79,907.13 = 35,241.74/x
  3. Step 3: Cross multiply
    57,920.93x = 79,907.13 × 35,241.74
  4. Step 4: Simplify right side
    57,920.93x = 2,816,066,499.37
  5. Step 5: Solve for x
    x = 2,816,066,499.37/57,920.93
  6. Step 6: Final answer
    x = 48,619.15

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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.