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Finding the Fourth Proportional to 8,020, 11,067.60 and 4,708

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Solution

The fourth proportional to 8,020, 11,067.60 and 4,708 is: 6,497.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020 : 11,067.60 = 4,708 : x
  2. Step 2: Convert to fraction form
    8,020/11,067.60 = 4,708/x
  3. Step 3: Cross multiply
    8,020x = 11,067.60 × 4,708
  4. Step 4: Simplify right side
    8,020x = 52,106,260.80
  5. Step 5: Solve for x
    x = 52,106,260.80/8,020
  6. Step 6: Final answer
    x = 6,497.04

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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.