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Finding the Fourth Proportional to 52,492.86, 78,734.43 and 19,211.58

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Solution

The fourth proportional to 52,492.86, 78,734.43 and 19,211.58 is: 28,815.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,492.86 : 78,734.43 = 19,211.58 : x
  2. Step 2: Convert to fraction form
    52,492.86/78,734.43 = 19,211.58/x
  3. Step 3: Cross multiply
    52,492.86x = 78,734.43 × 19,211.58
  4. Step 4: Simplify right side
    52,492.86x = 1,512,612,800.70
  5. Step 5: Solve for x
    x = 1,512,612,800.70/52,492.86
  6. Step 6: Final answer
    x = 28,815.59

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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.