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Finding the Fourth Proportional to 11,900.90, 17,844.15 and 5,325.86

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Solution

The fourth proportional to 11,900.90, 17,844.15 and 5,325.86 is: 7,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.90 : 17,844.15 = 5,325.86 : x
  2. Step 2: Convert to fraction form
    11,900.90/17,844.15 = 5,325.86/x
  3. Step 3: Cross multiply
    11,900.90x = 17,844.15 × 5,325.86
  4. Step 4: Simplify right side
    11,900.90x = 95,035,444.72
  5. Step 5: Solve for x
    x = 95,035,444.72/11,900.90
  6. Step 6: Final answer
    x = 7,985.57

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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.