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Finding the Fourth Proportional to 8,374.03, 11,556.63 and 5,019.21

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Solution

The fourth proportional to 8,374.03, 11,556.63 and 5,019.21 is: 6,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.03 : 11,556.63 = 5,019.21 : x
  2. Step 2: Convert to fraction form
    8,374.03/11,556.63 = 5,019.21/x
  3. Step 3: Cross multiply
    8,374.03x = 11,556.63 × 5,019.21
  4. Step 4: Simplify right side
    8,374.03x = 58,005,152.86
  5. Step 5: Solve for x
    x = 58,005,152.86/8,374.03
  6. Step 6: Final answer
    x = 6,926.79

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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.