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Finding the Fourth Proportional to 7,068.66, 9,755.19 and 3,924.87

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Solution

The fourth proportional to 7,068.66, 9,755.19 and 3,924.87 is: 5,416.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.66 : 9,755.19 = 3,924.87 : x
  2. Step 2: Convert to fraction form
    7,068.66/9,755.19 = 3,924.87/x
  3. Step 3: Cross multiply
    7,068.66x = 9,755.19 × 3,924.87
  4. Step 4: Simplify right side
    7,068.66x = 38,287,852.58
  5. Step 5: Solve for x
    x = 38,287,852.58/7,068.66
  6. Step 6: Final answer
    x = 5,416.56

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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.