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Finding the Fourth Proportional to 4,161.78, 5,742.70 and 2,483.87

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Solution

The fourth proportional to 4,161.78, 5,742.70 and 2,483.87 is: 3,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161.78 : 5,742.70 = 2,483.87 : x
  2. Step 2: Convert to fraction form
    4,161.78/5,742.70 = 2,483.87/x
  3. Step 3: Cross multiply
    4,161.78x = 5,742.70 × 2,483.87
  4. Step 4: Simplify right side
    4,161.78x = 14,264,085.33
  5. Step 5: Solve for x
    x = 14,264,085.33/4,161.78
  6. Step 6: Final answer
    x = 3,427.40

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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.