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Finding the Fourth Proportional to 19,842.86, 29,764.52 and 5,051.76

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Solution

The fourth proportional to 19,842.86, 29,764.52 and 5,051.76 is: 7,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.86 : 29,764.52 = 5,051.76 : x
  2. Step 2: Convert to fraction form
    19,842.86/29,764.52 = 5,051.76/x
  3. Step 3: Cross multiply
    19,842.86x = 29,764.52 × 5,051.76
  4. Step 4: Simplify right side
    19,842.86x = 150,363,211.56
  5. Step 5: Solve for x
    x = 150,363,211.56/19,842.86
  6. Step 6: Final answer
    x = 7,577.70

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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.