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Finding the Fourth Proportional to 8,166.60, 11,253.78 and 5,802.12

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Solution

The fourth proportional to 8,166.60, 11,253.78 and 5,802.12 is: 7,995.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.60 : 11,253.78 = 5,802.12 : x
  2. Step 2: Convert to fraction form
    8,166.60/11,253.78 = 5,802.12/x
  3. Step 3: Cross multiply
    8,166.60x = 11,253.78 × 5,802.12
  4. Step 4: Simplify right side
    8,166.60x = 65,295,782.01
  5. Step 5: Solve for x
    x = 65,295,782.01/8,166.60
  6. Step 6: Final answer
    x = 7,995.47

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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.