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Finding the Fourth Proportional to 3,811.96, 5,256.18 and 2,483.56

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Solution

The fourth proportional to 3,811.96, 5,256.18 and 2,483.56 is: 3,424.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.96 : 5,256.18 = 2,483.56 : x
  2. Step 2: Convert to fraction form
    3,811.96/5,256.18 = 2,483.56/x
  3. Step 3: Cross multiply
    3,811.96x = 5,256.18 × 2,483.56
  4. Step 4: Simplify right side
    3,811.96x = 13,054,038.40
  5. Step 5: Solve for x
    x = 13,054,038.40/3,811.96
  6. Step 6: Final answer
    x = 3,424.50

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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.