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Finding the Fourth Proportional to 2,274.54, 3,129.48 and 1,776.32

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Solution

The fourth proportional to 2,274.54, 3,129.48 and 1,776.32 is: 2,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.54 : 3,129.48 = 1,776.32 : x
  2. Step 2: Convert to fraction form
    2,274.54/3,129.48 = 1,776.32/x
  3. Step 3: Cross multiply
    2,274.54x = 3,129.48 × 1,776.32
  4. Step 4: Simplify right side
    2,274.54x = 5,558,948.35
  5. Step 5: Solve for x
    x = 5,558,948.35/2,274.54
  6. Step 6: Final answer
    x = 2,443.98

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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.