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Finding the Fourth Proportional to 60,565.75, 90,863.21 and 19,012.75

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Solution

The fourth proportional to 60,565.75, 90,863.21 and 19,012.75 is: 28,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,565.75 : 90,863.21 = 19,012.75 : x
  2. Step 2: Convert to fraction form
    60,565.75/90,863.21 = 19,012.75/x
  3. Step 3: Cross multiply
    60,565.75x = 90,863.21 × 19,012.75
  4. Step 4: Simplify right side
    60,565.75x = 1,727,559,495.93
  5. Step 5: Solve for x
    x = 1,727,559,495.93/60,565.75
  6. Step 6: Final answer
    x = 28,523.70

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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.