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Finding the Fourth Proportional to 55,473.62, 76,534.87 and 31,583.37

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Solution

The fourth proportional to 55,473.62, 76,534.87 and 31,583.37 is: 43,574.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,473.62 : 76,534.87 = 31,583.37 : x
  2. Step 2: Convert to fraction form
    55,473.62/76,534.87 = 31,583.37/x
  3. Step 3: Cross multiply
    55,473.62x = 76,534.87 × 31,583.37
  4. Step 4: Simplify right side
    55,473.62x = 2,417,228,959.20
  5. Step 5: Solve for x
    x = 2,417,228,959.20/55,473.62
  6. Step 6: Final answer
    x = 43,574.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.