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Finding the Fourth Proportional to 5,411, 7,467.36 and 3,314.72

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Solution

The fourth proportional to 5,411, 7,467.36 and 3,314.72 is: 4,574.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411 : 7,467.36 = 3,314.72 : x
  2. Step 2: Convert to fraction form
    5,411/7,467.36 = 3,314.72/x
  3. Step 3: Cross multiply
    5,411x = 7,467.36 × 3,314.72
  4. Step 4: Simplify right side
    5,411x = 24,752,207.54
  5. Step 5: Solve for x
    x = 24,752,207.54/5,411
  6. Step 6: Final answer
    x = 4,574.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.