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Finding the Fourth Proportional to 7,212.58, 10,755.24 and 6,955.61

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Solution

The fourth proportional to 7,212.58, 10,755.24 and 6,955.61 is: 10,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.58 : 10,755.24 = 6,955.61 : x
  2. Step 2: Convert to fraction form
    7,212.58/10,755.24 = 6,955.61/x
  3. Step 3: Cross multiply
    7,212.58x = 10,755.24 × 6,955.61
  4. Step 4: Simplify right side
    7,212.58x = 74,809,246.20
  5. Step 5: Solve for x
    x = 74,809,246.20/7,212.58
  6. Step 6: Final answer
    x = 10,372.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.