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Finding the Fourth Proportional to 40,446.60, 60,659.10 and 14,148.60

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Solution

The fourth proportional to 40,446.60, 60,659.10 and 14,148.60 is: 21,219.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,446.60 : 60,659.10 = 14,148.60 : x
  2. Step 2: Convert to fraction form
    40,446.60/60,659.10 = 14,148.60/x
  3. Step 3: Cross multiply
    40,446.60x = 60,659.10 × 14,148.60
  4. Step 4: Simplify right side
    40,446.60x = 858,241,342.26
  5. Step 5: Solve for x
    x = 858,241,342.26/40,446.60
  6. Step 6: Final answer
    x = 21,219.12

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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.