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Finding the Fourth Proportional to 3,418.83, 4,738.19 and 3,366.99

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Solution

The fourth proportional to 3,418.83, 4,738.19 and 3,366.99 is: 4,666.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.83 : 4,738.19 = 3,366.99 : x
  2. Step 2: Convert to fraction form
    3,418.83/4,738.19 = 3,366.99/x
  3. Step 3: Cross multiply
    3,418.83x = 4,738.19 × 3,366.99
  4. Step 4: Simplify right side
    3,418.83x = 15,953,421.51
  5. Step 5: Solve for x
    x = 15,953,421.51/3,418.83
  6. Step 6: Final answer
    x = 4,666.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.