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Finding the Fourth Proportional to 7,858.49, 10,844.62 and 5,850.87

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Solution

The fourth proportional to 7,858.49, 10,844.62 and 5,850.87 is: 8,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.49 : 10,844.62 = 5,850.87 : x
  2. Step 2: Convert to fraction form
    7,858.49/10,844.62 = 5,850.87/x
  3. Step 3: Cross multiply
    7,858.49x = 10,844.62 × 5,850.87
  4. Step 4: Simplify right side
    7,858.49x = 63,450,461.82
  5. Step 5: Solve for x
    x = 63,450,461.82/7,858.49
  6. Step 6: Final answer
    x = 8,074.13

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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.