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Finding the Fourth Proportional to 7,802.12, 11,694.98 and 5,336.28

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Solution

The fourth proportional to 7,802.12, 11,694.98 and 5,336.28 is: 7,998.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,802.12 : 11,694.98 = 5,336.28 : x
  2. Step 2: Convert to fraction form
    7,802.12/11,694.98 = 5,336.28/x
  3. Step 3: Cross multiply
    7,802.12x = 11,694.98 × 5,336.28
  4. Step 4: Simplify right side
    7,802.12x = 62,407,701.22
  5. Step 5: Solve for x
    x = 62,407,701.22/7,802.12
  6. Step 6: Final answer
    x = 7,998.81

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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.