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Finding the Fourth Proportional to 13,893.50, 19,173.22 and 7,605.74

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Solution

The fourth proportional to 13,893.50, 19,173.22 and 7,605.74 is: 10,496.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.50 : 19,173.22 = 7,605.74 : x
  2. Step 2: Convert to fraction form
    13,893.50/19,173.22 = 7,605.74/x
  3. Step 3: Cross multiply
    13,893.50x = 19,173.22 × 7,605.74
  4. Step 4: Simplify right side
    13,893.50x = 145,826,526.28
  5. Step 5: Solve for x
    x = 145,826,526.28/13,893.50
  6. Step 6: Final answer
    x = 10,496.03

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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.