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Finding the Fourth Proportional to 53,374.60, 80,063.52 and 18,313.75

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Solution

The fourth proportional to 53,374.60, 80,063.52 and 18,313.75 is: 27,471.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,374.60 : 80,063.52 = 18,313.75 : x
  2. Step 2: Convert to fraction form
    53,374.60/80,063.52 = 18,313.75/x
  3. Step 3: Cross multiply
    53,374.60x = 80,063.52 × 18,313.75
  4. Step 4: Simplify right side
    53,374.60x = 1,466,263,289.40
  5. Step 5: Solve for x
    x = 1,466,263,289.40/53,374.60
  6. Step 6: Final answer
    x = 27,471.18

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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.