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Finding the Fourth Proportional to 2,776.47, 3,832.16 and 1,892.63

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Solution

The fourth proportional to 2,776.47, 3,832.16 and 1,892.63 is: 2,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.47 : 3,832.16 = 1,892.63 : x
  2. Step 2: Convert to fraction form
    2,776.47/3,832.16 = 1,892.63/x
  3. Step 3: Cross multiply
    2,776.47x = 3,832.16 × 1,892.63
  4. Step 4: Simplify right side
    2,776.47x = 7,252,832.36
  5. Step 5: Solve for x
    x = 7,252,832.36/2,776.47
  6. Step 6: Final answer
    x = 2,612.25

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1.5x scale

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.