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Finding the Fourth Proportional to 4,899.18, 7,342.44 and 3,143.52

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Solution

The fourth proportional to 4,899.18, 7,342.44 and 3,143.52 is: 4,711.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.18 : 7,342.44 = 3,143.52 : x
  2. Step 2: Convert to fraction form
    4,899.18/7,342.44 = 3,143.52/x
  3. Step 3: Cross multiply
    4,899.18x = 7,342.44 × 3,143.52
  4. Step 4: Simplify right side
    4,899.18x = 23,081,106.99
  5. Step 5: Solve for x
    x = 23,081,106.99/4,899.18
  6. Step 6: Final answer
    x = 4,711.22

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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.