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Finding the Fourth Proportional to 37,722.60, 56,583.90 and 20,007.90

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Solution

The fourth proportional to 37,722.60, 56,583.90 and 20,007.90 is: 30,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,722.60 : 56,583.90 = 20,007.90 : x
  2. Step 2: Convert to fraction form
    37,722.60/56,583.90 = 20,007.90/x
  3. Step 3: Cross multiply
    37,722.60x = 56,583.90 × 20,007.90
  4. Step 4: Simplify right side
    37,722.60x = 1,132,125,012.81
  5. Step 5: Solve for x
    x = 1,132,125,012.81/37,722.60
  6. Step 6: Final answer
    x = 30,011.85

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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.