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Finding the Fourth Proportional to 7,255.08, 10,866.10 and 7,091.08

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Solution

The fourth proportional to 7,255.08, 10,866.10 and 7,091.08 is: 10,620.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.08 : 10,866.10 = 7,091.08 : x
  2. Step 2: Convert to fraction form
    7,255.08/10,866.10 = 7,091.08/x
  3. Step 3: Cross multiply
    7,255.08x = 10,866.10 × 7,091.08
  4. Step 4: Simplify right side
    7,255.08x = 77,052,384.39
  5. Step 5: Solve for x
    x = 77,052,384.39/7,255.08
  6. Step 6: Final answer
    x = 10,620.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.