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Finding the Fourth Proportional to 7,855.14, 10,841.16 and 5,068.74

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Solution

The fourth proportional to 7,855.14, 10,841.16 and 5,068.74 is: 6,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.14 : 10,841.16 = 5,068.74 : x
  2. Step 2: Convert to fraction form
    7,855.14/10,841.16 = 5,068.74/x
  3. Step 3: Cross multiply
    7,855.14x = 10,841.16 × 5,068.74
  4. Step 4: Simplify right side
    7,855.14x = 54,951,021.34
  5. Step 5: Solve for x
    x = 54,951,021.34/7,855.14
  6. Step 6: Final answer
    x = 6,995.55

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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.