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Finding the Fourth Proportional to 7,223.56, 10,820.56 and 4,996.87

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Solution

The fourth proportional to 7,223.56, 10,820.56 and 4,996.87 is: 7,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.56 : 10,820.56 = 4,996.87 : x
  2. Step 2: Convert to fraction form
    7,223.56/10,820.56 = 4,996.87/x
  3. Step 3: Cross multiply
    7,223.56x = 10,820.56 × 4,996.87
  4. Step 4: Simplify right side
    7,223.56x = 54,068,906.66
  5. Step 5: Solve for x
    x = 54,068,906.66/7,223.56
  6. Step 6: Final answer
    x = 7,485.08

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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.