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Finding the Fourth Proportional to 4,807.68, 7,212.12 and 2,340.42

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Solution

The fourth proportional to 4,807.68, 7,212.12 and 2,340.42 is: 3,510.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.68 : 7,212.12 = 2,340.42 : x
  2. Step 2: Convert to fraction form
    4,807.68/7,212.12 = 2,340.42/x
  3. Step 3: Cross multiply
    4,807.68x = 7,212.12 × 2,340.42
  4. Step 4: Simplify right side
    4,807.68x = 16,879,389.89
  5. Step 5: Solve for x
    x = 16,879,389.89/4,807.68
  6. Step 6: Final answer
    x = 3,510.92

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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.