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Finding the Fourth Proportional to 3,808.94, 5,258.85 and 2,929.34

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Solution

The fourth proportional to 3,808.94, 5,258.85 and 2,929.34 is: 4,044.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.94 : 5,258.85 = 2,929.34 : x
  2. Step 2: Convert to fraction form
    3,808.94/5,258.85 = 2,929.34/x
  3. Step 3: Cross multiply
    3,808.94x = 5,258.85 × 2,929.34
  4. Step 4: Simplify right side
    3,808.94x = 15,404,959.66
  5. Step 5: Solve for x
    x = 15,404,959.66/3,808.94
  6. Step 6: Final answer
    x = 4,044.42

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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.