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Finding the Fourth Proportional to 5,980.61, 8,971.95 and 2,031.45

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Solution

The fourth proportional to 5,980.61, 8,971.95 and 2,031.45 is: 3,047.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,980.61 : 8,971.95 = 2,031.45 : x
  2. Step 2: Convert to fraction form
    5,980.61/8,971.95 = 2,031.45/x
  3. Step 3: Cross multiply
    5,980.61x = 8,971.95 × 2,031.45
  4. Step 4: Simplify right side
    5,980.61x = 18,226,067.83
  5. Step 5: Solve for x
    x = 18,226,067.83/5,980.61
  6. Step 6: Final answer
    x = 3,047.53

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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.