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Finding the Fourth Proportional to 9,333.48, 12,876.12 and 6,679.92

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Solution

The fourth proportional to 9,333.48, 12,876.12 and 6,679.92 is: 9,215.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,333.48 : 12,876.12 = 6,679.92 : x
  2. Step 2: Convert to fraction form
    9,333.48/12,876.12 = 6,679.92/x
  3. Step 3: Cross multiply
    9,333.48x = 12,876.12 × 6,679.92
  4. Step 4: Simplify right side
    9,333.48x = 86,011,451.51
  5. Step 5: Solve for x
    x = 86,011,451.51/9,333.48
  6. Step 6: Final answer
    x = 9,215.37

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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.