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Finding the Fourth Proportional to 7,858.56, 10,844.94 and 4,321.74

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Solution

The fourth proportional to 7,858.56, 10,844.94 and 4,321.74 is: 5,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.56 : 10,844.94 = 4,321.74 : x
  2. Step 2: Convert to fraction form
    7,858.56/10,844.94 = 4,321.74/x
  3. Step 3: Cross multiply
    7,858.56x = 10,844.94 × 4,321.74
  4. Step 4: Simplify right side
    7,858.56x = 46,869,011.00
  5. Step 5: Solve for x
    x = 46,869,011.00/7,858.56
  6. Step 6: Final answer
    x = 5,964.07

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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.