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Finding the Fourth Proportional to 1,894.88, 2,614.01 and 1,177.12

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Solution

The fourth proportional to 1,894.88, 2,614.01 and 1,177.12 is: 1,623.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.88 : 2,614.01 = 1,177.12 : x
  2. Step 2: Convert to fraction form
    1,894.88/2,614.01 = 1,177.12/x
  3. Step 3: Cross multiply
    1,894.88x = 2,614.01 × 1,177.12
  4. Step 4: Simplify right side
    1,894.88x = 3,076,999.86
  5. Step 5: Solve for x
    x = 3,076,999.86/1,894.88
  6. Step 6: Final answer
    x = 1,623.85

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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.