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Finding the Fourth Proportional to 7,214.43, 9,955.89 and 4,027.98

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Solution

The fourth proportional to 7,214.43, 9,955.89 and 4,027.98 is: 5,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.43 : 9,955.89 = 4,027.98 : x
  2. Step 2: Convert to fraction form
    7,214.43/9,955.89 = 4,027.98/x
  3. Step 3: Cross multiply
    7,214.43x = 9,955.89 × 4,027.98
  4. Step 4: Simplify right side
    7,214.43x = 40,102,125.80
  5. Step 5: Solve for x
    x = 40,102,125.80/7,214.43
  6. Step 6: Final answer
    x = 5,558.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.