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Finding the Fourth Proportional to 10,651.80, 15,977.70 and 2,754.30

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Solution

The fourth proportional to 10,651.80, 15,977.70 and 2,754.30 is: 4,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,651.80 : 15,977.70 = 2,754.30 : x
  2. Step 2: Convert to fraction form
    10,651.80/15,977.70 = 2,754.30/x
  3. Step 3: Cross multiply
    10,651.80x = 15,977.70 × 2,754.30
  4. Step 4: Simplify right side
    10,651.80x = 44,007,379.11
  5. Step 5: Solve for x
    x = 44,007,379.11/10,651.80
  6. Step 6: Final answer
    x = 4,131.45

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Similar ratio
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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.