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Finding the Fourth Proportional to 60,928.38, 91,358.62 and 18,796.51

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Solution

The fourth proportional to 60,928.38, 91,358.62 and 18,796.51 is: 28,184.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,928.38 : 91,358.62 = 18,796.51 : x
  2. Step 2: Convert to fraction form
    60,928.38/91,358.62 = 18,796.51/x
  3. Step 3: Cross multiply
    60,928.38x = 91,358.62 × 18,796.51
  4. Step 4: Simplify right side
    60,928.38x = 1,717,223,214.42
  5. Step 5: Solve for x
    x = 1,717,223,214.42/60,928.38
  6. Step 6: Final answer
    x = 28,184.29

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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.