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Finding the Fourth Proportional to 7,182.86, 9,912.54 and 4,350.74

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Solution

The fourth proportional to 7,182.86, 9,912.54 and 4,350.74 is: 6,004.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.86 : 9,912.54 = 4,350.74 : x
  2. Step 2: Convert to fraction form
    7,182.86/9,912.54 = 4,350.74/x
  3. Step 3: Cross multiply
    7,182.86x = 9,912.54 × 4,350.74
  4. Step 4: Simplify right side
    7,182.86x = 43,126,884.28
  5. Step 5: Solve for x
    x = 43,126,884.28/7,182.86
  6. Step 6: Final answer
    x = 6,004.14

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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.