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Finding the Fourth Proportional to 29,624.60, 44,534.10 and 20,919.80

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Solution

The fourth proportional to 29,624.60, 44,534.10 and 20,919.80 is: 31,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,624.60 : 44,534.10 = 20,919.80 : x
  2. Step 2: Convert to fraction form
    29,624.60/44,534.10 = 20,919.80/x
  3. Step 3: Cross multiply
    29,624.60x = 44,534.10 × 20,919.80
  4. Step 4: Simplify right side
    29,624.60x = 931,644,465.18
  5. Step 5: Solve for x
    x = 931,644,465.18/29,624.60
  6. Step 6: Final answer
    x = 31,448.34

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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.