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Finding the Fourth Proportional to 9,267.86, 12,789.66 and 5,018.93

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Solution

The fourth proportional to 9,267.86, 12,789.66 and 5,018.93 is: 6,926.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.86 : 12,789.66 = 5,018.93 : x
  2. Step 2: Convert to fraction form
    9,267.86/12,789.66 = 5,018.93/x
  3. Step 3: Cross multiply
    9,267.86x = 12,789.66 × 5,018.93
  4. Step 4: Simplify right side
    9,267.86x = 64,190,382.87
  5. Step 5: Solve for x
    x = 64,190,382.87/9,267.86
  6. Step 6: Final answer
    x = 6,926.13

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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.