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Finding the Fourth Proportional to 15,957.77, 23,929.73 and 5,424.96

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Solution

The fourth proportional to 15,957.77, 23,929.73 and 5,424.96 is: 8,135.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,957.77 : 23,929.73 = 5,424.96 : x
  2. Step 2: Convert to fraction form
    15,957.77/23,929.73 = 5,424.96/x
  3. Step 3: Cross multiply
    15,957.77x = 23,929.73 × 5,424.96
  4. Step 4: Simplify right side
    15,957.77x = 129,817,860.76
  5. Step 5: Solve for x
    x = 129,817,860.76/15,957.77
  6. Step 6: Final answer
    x = 8,135.09

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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.