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Finding the Fourth Proportional to 7,551.63, 11,321.24 and 6,731.64

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Solution

The fourth proportional to 7,551.63, 11,321.24 and 6,731.64 is: 10,091.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.63 : 11,321.24 = 6,731.64 : x
  2. Step 2: Convert to fraction form
    7,551.63/11,321.24 = 6,731.64/x
  3. Step 3: Cross multiply
    7,551.63x = 11,321.24 × 6,731.64
  4. Step 4: Simplify right side
    7,551.63x = 76,210,478.38
  5. Step 5: Solve for x
    x = 76,210,478.38/7,551.63
  6. Step 6: Final answer
    x = 10,091.92

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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.