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Finding the Fourth Proportional to 5,705.64, 7,873.20 and 3,346.92

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Solution

The fourth proportional to 5,705.64, 7,873.20 and 3,346.92 is: 4,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.64 : 7,873.20 = 3,346.92 : x
  2. Step 2: Convert to fraction form
    5,705.64/7,873.20 = 3,346.92/x
  3. Step 3: Cross multiply
    5,705.64x = 7,873.20 × 3,346.92
  4. Step 4: Simplify right side
    5,705.64x = 26,350,970.54
  5. Step 5: Solve for x
    x = 26,350,970.54/5,705.64
  6. Step 6: Final answer
    x = 4,618.41

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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.