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Finding the Fourth Proportional to 3,504.48, 5,255.19 and 1,860.63

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Solution

The fourth proportional to 3,504.48, 5,255.19 and 1,860.63 is: 2,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.48 : 5,255.19 = 1,860.63 : x
  2. Step 2: Convert to fraction form
    3,504.48/5,255.19 = 1,860.63/x
  3. Step 3: Cross multiply
    3,504.48x = 5,255.19 × 1,860.63
  4. Step 4: Simplify right side
    3,504.48x = 9,777,964.17
  5. Step 5: Solve for x
    x = 9,777,964.17/3,504.48
  6. Step 6: Final answer
    x = 2,790.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.