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Finding the Fourth Proportional to 61,570.80, 84,974.94 and 37,700.64

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Solution

The fourth proportional to 61,570.80, 84,974.94 and 37,700.64 is: 52,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,570.80 : 84,974.94 = 37,700.64 : x
  2. Step 2: Convert to fraction form
    61,570.80/84,974.94 = 37,700.64/x
  3. Step 3: Cross multiply
    61,570.80x = 84,974.94 × 37,700.64
  4. Step 4: Simplify right side
    61,570.80x = 3,203,609,621.96
  5. Step 5: Solve for x
    x = 3,203,609,621.96/61,570.80
  6. Step 6: Final answer
    x = 52,031.31

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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.