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Finding the Fourth Proportional to 52,376.88, 78,540.96 and 19,073.76

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Solution

The fourth proportional to 52,376.88, 78,540.96 and 19,073.76 is: 28,601.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,376.88 : 78,540.96 = 19,073.76 : x
  2. Step 2: Convert to fraction form
    52,376.88/78,540.96 = 19,073.76/x
  3. Step 3: Cross multiply
    52,376.88x = 78,540.96 × 19,073.76
  4. Step 4: Simplify right side
    52,376.88x = 1,498,071,421.21
  5. Step 5: Solve for x
    x = 1,498,071,421.21/52,376.88
  6. Step 6: Final answer
    x = 28,601.77

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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.