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Finding the Fourth Proportional to 55,883.64, 83,775.36 and 20,799.36

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Solution

The fourth proportional to 55,883.64, 83,775.36 and 20,799.36 is: 31,180.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,883.64 : 83,775.36 = 20,799.36 : x
  2. Step 2: Convert to fraction form
    55,883.64/83,775.36 = 20,799.36/x
  3. Step 3: Cross multiply
    55,883.64x = 83,775.36 × 20,799.36
  4. Step 4: Simplify right side
    55,883.64x = 1,742,473,871.77
  5. Step 5: Solve for x
    x = 1,742,473,871.77/55,883.64
  6. Step 6: Final answer
    x = 31,180.39

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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.