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Finding the Fourth Proportional to 4,953.21, 6,835.49 and 2,715.30

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Solution

The fourth proportional to 4,953.21, 6,835.49 and 2,715.30 is: 3,747.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,953.21 : 6,835.49 = 2,715.30 : x
  2. Step 2: Convert to fraction form
    4,953.21/6,835.49 = 2,715.30/x
  3. Step 3: Cross multiply
    4,953.21x = 6,835.49 × 2,715.30
  4. Step 4: Simplify right side
    4,953.21x = 18,560,392.42
  5. Step 5: Solve for x
    x = 18,560,392.42/4,953.21
  6. Step 6: Final answer
    x = 3,747.14

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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.