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Finding the Fourth Proportional to 7,855.74, 10,843.44 and 5,030.72

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Solution

The fourth proportional to 7,855.74, 10,843.44 and 5,030.72 is: 6,944.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.74 : 10,843.44 = 5,030.72 : x
  2. Step 2: Convert to fraction form
    7,855.74/10,843.44 = 5,030.72/x
  3. Step 3: Cross multiply
    7,855.74x = 10,843.44 × 5,030.72
  4. Step 4: Simplify right side
    7,855.74x = 54,550,310.48
  5. Step 5: Solve for x
    x = 54,550,310.48/7,855.74
  6. Step 6: Final answer
    x = 6,944.01

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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.