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Finding the Fourth Proportional to 7,216.64, 10,817.10 and 3,701.76

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Solution

The fourth proportional to 7,216.64, 10,817.10 and 3,701.76 is: 5,548.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.64 : 10,817.10 = 3,701.76 : x
  2. Step 2: Convert to fraction form
    7,216.64/10,817.10 = 3,701.76/x
  3. Step 3: Cross multiply
    7,216.64x = 10,817.10 × 3,701.76
  4. Step 4: Simplify right side
    7,216.64x = 40,042,308.10
  5. Step 5: Solve for x
    x = 40,042,308.10/7,216.64
  6. Step 6: Final answer
    x = 5,548.61

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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.