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Finding the Fourth Proportional to 3,420.44, 4,720.22 and 1,848.54

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Solution

The fourth proportional to 3,420.44, 4,720.22 and 1,848.54 is: 2,550.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.44 : 4,720.22 = 1,848.54 : x
  2. Step 2: Convert to fraction form
    3,420.44/4,720.22 = 1,848.54/x
  3. Step 3: Cross multiply
    3,420.44x = 4,720.22 × 1,848.54
  4. Step 4: Simplify right side
    3,420.44x = 8,725,515.48
  5. Step 5: Solve for x
    x = 8,725,515.48/3,420.44
  6. Step 6: Final answer
    x = 2,550.99

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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.