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Finding the Fourth Proportional to 9,270.88, 12,793.81 and 5,079.13

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Solution

The fourth proportional to 9,270.88, 12,793.81 and 5,079.13 is: 7,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,270.88 : 12,793.81 = 5,079.13 : x
  2. Step 2: Convert to fraction form
    9,270.88/12,793.81 = 5,079.13/x
  3. Step 3: Cross multiply
    9,270.88x = 12,793.81 × 5,079.13
  4. Step 4: Simplify right side
    9,270.88x = 64,981,424.19
  5. Step 5: Solve for x
    x = 64,981,424.19/9,270.88
  6. Step 6: Final answer
    x = 7,009.20

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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.