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Finding the Fourth Proportional to 60,570.72, 90,867.42 and 19,008

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Solution

The fourth proportional to 60,570.72, 90,867.42 and 19,008 is: 28,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,570.72 : 90,867.42 = 19,008 : x
  2. Step 2: Convert to fraction form
    60,570.72/90,867.42 = 19,008/x
  3. Step 3: Cross multiply
    60,570.72x = 90,867.42 × 19,008
  4. Step 4: Simplify right side
    60,570.72x = 1,727,207,919.36
  5. Step 5: Solve for x
    x = 1,727,207,919.36/60,570.72
  6. Step 6: Final answer
    x = 28,515.56

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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.