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Finding the Fourth Proportional to 57,977.78, 79,980.09 and 34,089.26

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Solution

The fourth proportional to 57,977.78, 79,980.09 and 34,089.26 is: 47,025.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,977.78 : 79,980.09 = 34,089.26 : x
  2. Step 2: Convert to fraction form
    57,977.78/79,980.09 = 34,089.26/x
  3. Step 3: Cross multiply
    57,977.78x = 79,980.09 × 34,089.26
  4. Step 4: Simplify right side
    57,977.78x = 2,726,462,082.83
  5. Step 5: Solve for x
    x = 2,726,462,082.83/57,977.78
  6. Step 6: Final answer
    x = 47,025.98

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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.