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Finding the Fourth Proportional to 11,879.90, 17,833.65 and 6,953.07

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Solution

The fourth proportional to 11,879.90, 17,833.65 and 6,953.07 is: 10,437.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.90 : 17,833.65 = 6,953.07 : x
  2. Step 2: Convert to fraction form
    11,879.90/17,833.65 = 6,953.07/x
  3. Step 3: Cross multiply
    11,879.90x = 17,833.65 × 6,953.07
  4. Step 4: Simplify right side
    11,879.90x = 123,998,616.81
  5. Step 5: Solve for x
    x = 123,998,616.81/11,879.90
  6. Step 6: Final answer
    x = 10,437.68

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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.