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Finding the Fourth Proportional to 4,953.90, 6,836.37 and 2,715.79

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Solution

The fourth proportional to 4,953.90, 6,836.37 and 2,715.79 is: 3,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,953.90 : 6,836.37 = 2,715.79 : x
  2. Step 2: Convert to fraction form
    4,953.90/6,836.37 = 2,715.79/x
  3. Step 3: Cross multiply
    4,953.90x = 6,836.37 × 2,715.79
  4. Step 4: Simplify right side
    4,953.90x = 18,566,145.28
  5. Step 5: Solve for x
    x = 18,566,145.28/4,953.90
  6. Step 6: Final answer
    x = 3,747.78

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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.