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Finding the Fourth Proportional to 11,333.76, 17,003.72 and 3,938.63

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Solution

The fourth proportional to 11,333.76, 17,003.72 and 3,938.63 is: 5,909.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,333.76 : 17,003.72 = 3,938.63 : x
  2. Step 2: Convert to fraction form
    11,333.76/17,003.72 = 3,938.63/x
  3. Step 3: Cross multiply
    11,333.76x = 17,003.72 × 3,938.63
  4. Step 4: Simplify right side
    11,333.76x = 66,971,430.00
  5. Step 5: Solve for x
    x = 66,971,430.00/11,333.76
  6. Step 6: Final answer
    x = 5,909.02

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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.