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Finding the Fourth Proportional to 5,873.38, 8,811.69 and 1,980.52

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Solution

The fourth proportional to 5,873.38, 8,811.69 and 1,980.52 is: 2,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,873.38 : 8,811.69 = 1,980.52 : x
  2. Step 2: Convert to fraction form
    5,873.38/8,811.69 = 1,980.52/x
  3. Step 3: Cross multiply
    5,873.38x = 8,811.69 × 1,980.52
  4. Step 4: Simplify right side
    5,873.38x = 17,451,728.28
  5. Step 5: Solve for x
    x = 17,451,728.28/5,873.38
  6. Step 6: Final answer
    x = 2,971.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.