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Finding the Fourth Proportional to 7,165.80, 10,753.74 and 6,553.80

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Solution

The fourth proportional to 7,165.80, 10,753.74 and 6,553.80 is: 9,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.80 : 10,753.74 = 6,553.80 : x
  2. Step 2: Convert to fraction form
    7,165.80/10,753.74 = 6,553.80/x
  3. Step 3: Cross multiply
    7,165.80x = 10,753.74 × 6,553.80
  4. Step 4: Simplify right side
    7,165.80x = 70,477,861.21
  5. Step 5: Solve for x
    x = 70,477,861.21/7,165.80
  6. Step 6: Final answer
    x = 9,835.31

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1.5x scale

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.