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Finding the Fourth Proportional to 7,879.08, 10,873.44 and 4,521.84

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Solution

The fourth proportional to 7,879.08, 10,873.44 and 4,521.84 is: 6,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.08 : 10,873.44 = 4,521.84 : x
  2. Step 2: Convert to fraction form
    7,879.08/10,873.44 = 4,521.84/x
  3. Step 3: Cross multiply
    7,879.08x = 10,873.44 × 4,521.84
  4. Step 4: Simplify right side
    7,879.08x = 49,167,955.93
  5. Step 5: Solve for x
    x = 49,167,955.93/7,879.08
  6. Step 6: Final answer
    x = 6,240.32

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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.