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Finding the Fourth Proportional to 4,808.19, 6,641.19 and 3,479.79

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Solution

The fourth proportional to 4,808.19, 6,641.19 and 3,479.79 is: 4,806.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,808.19 : 6,641.19 = 3,479.79 : x
  2. Step 2: Convert to fraction form
    4,808.19/6,641.19 = 3,479.79/x
  3. Step 3: Cross multiply
    4,808.19x = 6,641.19 × 3,479.79
  4. Step 4: Simplify right side
    4,808.19x = 23,109,946.55
  5. Step 5: Solve for x
    x = 23,109,946.55/4,808.19
  6. Step 6: Final answer
    x = 4,806.37

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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.