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Finding the Fourth Proportional to 43,237.80, 64,544.04 and 37,989

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Solution

The fourth proportional to 43,237.80, 64,544.04 and 37,989 is: 56,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,237.80 : 64,544.04 = 37,989 : x
  2. Step 2: Convert to fraction form
    43,237.80/64,544.04 = 37,989/x
  3. Step 3: Cross multiply
    43,237.80x = 64,544.04 × 37,989
  4. Step 4: Simplify right side
    43,237.80x = 2,451,963,535.56
  5. Step 5: Solve for x
    x = 2,451,963,535.56/43,237.80
  6. Step 6: Final answer
    x = 56,708.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.