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Finding the Fourth Proportional to 3,611.49, 5,417.22 and 1,302.99

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Solution

The fourth proportional to 3,611.49, 5,417.22 and 1,302.99 is: 1,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.49 : 5,417.22 = 1,302.99 : x
  2. Step 2: Convert to fraction form
    3,611.49/5,417.22 = 1,302.99/x
  3. Step 3: Cross multiply
    3,611.49x = 5,417.22 × 1,302.99
  4. Step 4: Simplify right side
    3,611.49x = 7,058,583.49
  5. Step 5: Solve for x
    x = 7,058,583.49/3,611.49
  6. Step 6: Final answer
    x = 1,954.48

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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.