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Finding the Fourth Proportional to 1,887.94, 2,605.36 and 1,048.62

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Solution

The fourth proportional to 1,887.94, 2,605.36 and 1,048.62 is: 1,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.94 : 2,605.36 = 1,048.62 : x
  2. Step 2: Convert to fraction form
    1,887.94/2,605.36 = 1,048.62/x
  3. Step 3: Cross multiply
    1,887.94x = 2,605.36 × 1,048.62
  4. Step 4: Simplify right side
    1,887.94x = 2,732,032.60
  5. Step 5: Solve for x
    x = 2,732,032.60/1,887.94
  6. Step 6: Final answer
    x = 1,447.10

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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.