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Finding the Fourth Proportional to 8,619.08, 11,893.90 and 5,034.22

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Solution

The fourth proportional to 8,619.08, 11,893.90 and 5,034.22 is: 6,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.08 : 11,893.90 = 5,034.22 : x
  2. Step 2: Convert to fraction form
    8,619.08/11,893.90 = 5,034.22/x
  3. Step 3: Cross multiply
    8,619.08x = 11,893.90 × 5,034.22
  4. Step 4: Simplify right side
    8,619.08x = 59,876,509.26
  5. Step 5: Solve for x
    x = 59,876,509.26/8,619.08
  6. Step 6: Final answer
    x = 6,946.97

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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.