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Finding the Fourth Proportional to 7,479.94, 11,219.91 and 2,007.94

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Solution

The fourth proportional to 7,479.94, 11,219.91 and 2,007.94 is: 3,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.94 : 11,219.91 = 2,007.94 : x
  2. Step 2: Convert to fraction form
    7,479.94/11,219.91 = 2,007.94/x
  3. Step 3: Cross multiply
    7,479.94x = 11,219.91 × 2,007.94
  4. Step 4: Simplify right side
    7,479.94x = 22,528,870.51
  5. Step 5: Solve for x
    x = 22,528,870.51/7,479.94
  6. Step 6: Final answer
    x = 3,011.91

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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.