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Finding the Fourth Proportional to 43,252.60, 64,734.90 and 31,372.60

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Solution

The fourth proportional to 43,252.60, 64,734.90 and 31,372.60 is: 46,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,252.60 : 64,734.90 = 31,372.60 : x
  2. Step 2: Convert to fraction form
    43,252.60/64,734.90 = 31,372.60/x
  3. Step 3: Cross multiply
    43,252.60x = 64,734.90 × 31,372.60
  4. Step 4: Simplify right side
    43,252.60x = 2,030,902,123.74
  5. Step 5: Solve for x
    x = 2,030,902,123.74/43,252.60
  6. Step 6: Final answer
    x = 46,954.45

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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.