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Finding the Fourth Proportional to 57,467.79, 86,173.92 and 20,026.98

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Solution

The fourth proportional to 57,467.79, 86,173.92 and 20,026.98 is: 30,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,467.79 : 86,173.92 = 20,026.98 : x
  2. Step 2: Convert to fraction form
    57,467.79/86,173.92 = 20,026.98/x
  3. Step 3: Cross multiply
    57,467.79x = 86,173.92 × 20,026.98
  4. Step 4: Simplify right side
    57,467.79x = 1,725,803,372.36
  5. Step 5: Solve for x
    x = 1,725,803,372.36/57,467.79
  6. Step 6: Final answer
    x = 30,030.79

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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.