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Finding the Fourth Proportional to 4,979.13, 7,467.53 and 1,859.45

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Solution

The fourth proportional to 4,979.13, 7,467.53 and 1,859.45 is: 2,788.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.13 : 7,467.53 = 1,859.45 : x
  2. Step 2: Convert to fraction form
    4,979.13/7,467.53 = 1,859.45/x
  3. Step 3: Cross multiply
    4,979.13x = 7,467.53 × 1,859.45
  4. Step 4: Simplify right side
    4,979.13x = 13,885,452.02
  5. Step 5: Solve for x
    x = 13,885,452.02/4,979.13
  6. Step 6: Final answer
    x = 2,788.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.