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Finding the Fourth Proportional to 4,866.99, 7,300.49 and 2,785.55

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Solution

The fourth proportional to 4,866.99, 7,300.49 and 2,785.55 is: 4,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.99 : 7,300.49 = 2,785.55 : x
  2. Step 2: Convert to fraction form
    4,866.99/7,300.49 = 2,785.55/x
  3. Step 3: Cross multiply
    4,866.99x = 7,300.49 × 2,785.55
  4. Step 4: Simplify right side
    4,866.99x = 20,335,843.42
  5. Step 5: Solve for x
    x = 20,335,843.42/4,866.99
  6. Step 6: Final answer
    x = 4,178.32

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Double scale
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Similar ratio
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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.