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Finding the Fourth Proportional to 1,611.84, 2,224.00 and 1,053.13

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Solution

The fourth proportional to 1,611.84, 2,224.00 and 1,053.13 is: 1,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.84 : 2,224.00 = 1,053.13 : x
  2. Step 2: Convert to fraction form
    1,611.84/2,224.00 = 1,053.13/x
  3. Step 3: Cross multiply
    1,611.84x = 2,224.00 × 1,053.13
  4. Step 4: Simplify right side
    1,611.84x = 2,342,165.22
  5. Step 5: Solve for x
    x = 2,342,165.22/1,611.84
  6. Step 6: Final answer
    x = 1,453.10

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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.