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Finding the Fourth Proportional to 10,059.92, 13,879.08 and 5,643.92

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Solution

The fourth proportional to 10,059.92, 13,879.08 and 5,643.92 is: 7,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,059.92 : 13,879.08 = 5,643.92 : x
  2. Step 2: Convert to fraction form
    10,059.92/13,879.08 = 5,643.92/x
  3. Step 3: Cross multiply
    10,059.92x = 13,879.08 × 5,643.92
  4. Step 4: Simplify right side
    10,059.92x = 78,332,417.19
  5. Step 5: Solve for x
    x = 78,332,417.19/10,059.92
  6. Step 6: Final answer
    x = 7,786.58

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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.