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Finding the Fourth Proportional to 5,980.62, 8,970.98 and 2,085.02

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Solution

The fourth proportional to 5,980.62, 8,970.98 and 2,085.02 is: 3,127.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,980.62 : 8,970.98 = 2,085.02 : x
  2. Step 2: Convert to fraction form
    5,980.62/8,970.98 = 2,085.02/x
  3. Step 3: Cross multiply
    5,980.62x = 8,970.98 × 2,085.02
  4. Step 4: Simplify right side
    5,980.62x = 18,704,672.72
  5. Step 5: Solve for x
    x = 18,704,672.72/5,980.62
  6. Step 6: Final answer
    x = 3,127.55

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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.