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Finding the Fourth Proportional to 6,855.08, 9,472.80 and 5,173.48

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Solution

The fourth proportional to 6,855.08, 9,472.80 and 5,173.48 is: 7,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.08 : 9,472.80 = 5,173.48 : x
  2. Step 2: Convert to fraction form
    6,855.08/9,472.80 = 5,173.48/x
  3. Step 3: Cross multiply
    6,855.08x = 9,472.80 × 5,173.48
  4. Step 4: Simplify right side
    6,855.08x = 49,007,341.34
  5. Step 5: Solve for x
    x = 49,007,341.34/6,855.08
  6. Step 6: Final answer
    x = 7,149.05

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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.