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Finding the Fourth Proportional to 4,709.22, 7,064.08 and 1,422.23

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Solution

The fourth proportional to 4,709.22, 7,064.08 and 1,422.23 is: 2,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.22 : 7,064.08 = 1,422.23 : x
  2. Step 2: Convert to fraction form
    4,709.22/7,064.08 = 1,422.23/x
  3. Step 3: Cross multiply
    4,709.22x = 7,064.08 × 1,422.23
  4. Step 4: Simplify right side
    4,709.22x = 10,046,707.62
  5. Step 5: Solve for x
    x = 10,046,707.62/4,709.22
  6. Step 6: Final answer
    x = 2,133.41

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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.