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Finding the Fourth Proportional to 5,040.86, 6,957.88 and 2,945.48

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Solution

The fourth proportional to 5,040.86, 6,957.88 and 2,945.48 is: 4,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.86 : 6,957.88 = 2,945.48 : x
  2. Step 2: Convert to fraction form
    5,040.86/6,957.88 = 2,945.48/x
  3. Step 3: Cross multiply
    5,040.86x = 6,957.88 × 2,945.48
  4. Step 4: Simplify right side
    5,040.86x = 20,494,296.38
  5. Step 5: Solve for x
    x = 20,494,296.38/5,040.86
  6. Step 6: Final answer
    x = 4,065.63

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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.