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Finding the Fourth Proportional to 7,069.98, 10,600.80 and 2,687.74

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Solution

The fourth proportional to 7,069.98, 10,600.80 and 2,687.74 is: 4,030.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.98 : 10,600.80 = 2,687.74 : x
  2. Step 2: Convert to fraction form
    7,069.98/10,600.80 = 2,687.74/x
  3. Step 3: Cross multiply
    7,069.98x = 10,600.80 × 2,687.74
  4. Step 4: Simplify right side
    7,069.98x = 28,492,194.19
  5. Step 5: Solve for x
    x = 28,492,194.19/7,069.98
  6. Step 6: Final answer
    x = 4,030.02

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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.