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Finding the Fourth Proportional to 6,938.08, 9,573.72 and 3,953.92

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Solution

The fourth proportional to 6,938.08, 9,573.72 and 3,953.92 is: 5,455.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.08 : 9,573.72 = 3,953.92 : x
  2. Step 2: Convert to fraction form
    6,938.08/9,573.72 = 3,953.92/x
  3. Step 3: Cross multiply
    6,938.08x = 9,573.72 × 3,953.92
  4. Step 4: Simplify right side
    6,938.08x = 37,853,722.98
  5. Step 5: Solve for x
    x = 37,853,722.98/6,938.08
  6. Step 6: Final answer
    x = 5,455.94

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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.