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Finding the Fourth Proportional to 29,165.80, 43,719.90 and 14,362.60

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Solution

The fourth proportional to 29,165.80, 43,719.90 and 14,362.60 is: 21,529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,165.80 : 43,719.90 = 14,362.60 : x
  2. Step 2: Convert to fraction form
    29,165.80/43,719.90 = 14,362.60/x
  3. Step 3: Cross multiply
    29,165.80x = 43,719.90 × 14,362.60
  4. Step 4: Simplify right side
    29,165.80x = 627,931,435.74
  5. Step 5: Solve for x
    x = 627,931,435.74/29,165.80
  6. Step 6: Final answer
    x = 21,529.72

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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.