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Finding the Fourth Proportional to 3,970.99, 5,956.45 and 1,009.44

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Solution

The fourth proportional to 3,970.99, 5,956.45 and 1,009.44 is: 1,514.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.99 : 5,956.45 = 1,009.44 : x
  2. Step 2: Convert to fraction form
    3,970.99/5,956.45 = 1,009.44/x
  3. Step 3: Cross multiply
    3,970.99x = 5,956.45 × 1,009.44
  4. Step 4: Simplify right side
    3,970.99x = 6,012,667.66
  5. Step 5: Solve for x
    x = 6,012,667.66/3,970.99
  6. Step 6: Final answer
    x = 1,514.15

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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.