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Finding the Fourth Proportional to 4,789.99, 6,609.19 and 2,800.16

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Solution

The fourth proportional to 4,789.99, 6,609.19 and 2,800.16 is: 3,863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.99 : 6,609.19 = 2,800.16 : x
  2. Step 2: Convert to fraction form
    4,789.99/6,609.19 = 2,800.16/x
  3. Step 3: Cross multiply
    4,789.99x = 6,609.19 × 2,800.16
  4. Step 4: Simplify right side
    4,789.99x = 18,506,789.47
  5. Step 5: Solve for x
    x = 18,506,789.47/4,789.99
  6. Step 6: Final answer
    x = 3,863.64

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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.