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Finding the Fourth Proportional to 4,807.86, 7,212.48 and 1,519.86

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Solution

The fourth proportional to 4,807.86, 7,212.48 and 1,519.86 is: 2,280.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.86 : 7,212.48 = 1,519.86 : x
  2. Step 2: Convert to fraction form
    4,807.86/7,212.48 = 1,519.86/x
  3. Step 3: Cross multiply
    4,807.86x = 7,212.48 × 1,519.86
  4. Step 4: Simplify right side
    4,807.86x = 10,961,959.85
  5. Step 5: Solve for x
    x = 10,961,959.85/4,807.86
  6. Step 6: Final answer
    x = 2,280.01

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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.