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Finding the Fourth Proportional to 14,620.60, 21,932.78 and 4,756.52

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Solution

The fourth proportional to 14,620.60, 21,932.78 and 4,756.52 is: 7,135.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.60 : 21,932.78 = 4,756.52 : x
  2. Step 2: Convert to fraction form
    14,620.60/21,932.78 = 4,756.52/x
  3. Step 3: Cross multiply
    14,620.60x = 21,932.78 × 4,756.52
  4. Step 4: Simplify right side
    14,620.60x = 104,323,737.77
  5. Step 5: Solve for x
    x = 104,323,737.77/14,620.60
  6. Step 6: Final answer
    x = 7,135.39

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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.