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Finding the Fourth Proportional to 9,448.88, 13,048.90 and 7,786.76

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Solution

The fourth proportional to 9,448.88, 13,048.90 and 7,786.76 is: 10,753.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,448.88 : 13,048.90 = 7,786.76 : x
  2. Step 2: Convert to fraction form
    9,448.88/13,048.90 = 7,786.76/x
  3. Step 3: Cross multiply
    9,448.88x = 13,048.90 × 7,786.76
  4. Step 4: Simplify right side
    9,448.88x = 101,608,652.56
  5. Step 5: Solve for x
    x = 101,608,652.56/9,448.88
  6. Step 6: Final answer
    x = 10,753.51

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Double scale
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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.