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Finding the Fourth Proportional to 1,365.58, 1,887.13 and 1,033.41

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Solution

The fourth proportional to 1,365.58, 1,887.13 and 1,033.41 is: 1,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.58 : 1,887.13 = 1,033.41 : x
  2. Step 2: Convert to fraction form
    1,365.58/1,887.13 = 1,033.41/x
  3. Step 3: Cross multiply
    1,365.58x = 1,887.13 × 1,033.41
  4. Step 4: Simplify right side
    1,365.58x = 1,950,179.01
  5. Step 5: Solve for x
    x = 1,950,179.01/1,365.58
  6. Step 6: Final answer
    x = 1,428.10

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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.