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Finding the Fourth Proportional to 2,854.60, 3,939.30 and 1,595.68

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Solution

The fourth proportional to 2,854.60, 3,939.30 and 1,595.68 is: 2,202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.60 : 3,939.30 = 1,595.68 : x
  2. Step 2: Convert to fraction form
    2,854.60/3,939.30 = 1,595.68/x
  3. Step 3: Cross multiply
    2,854.60x = 3,939.30 × 1,595.68
  4. Step 4: Simplify right side
    2,854.60x = 6,285,852.38
  5. Step 5: Solve for x
    x = 6,285,852.38/2,854.60
  6. Step 6: Final answer
    x = 2,202.01

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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.