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Finding the Fourth Proportional to 13,473.22, 18,593.04 and 7,811.25

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Solution

The fourth proportional to 13,473.22, 18,593.04 and 7,811.25 is: 10,779.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,473.22 : 18,593.04 = 7,811.25 : x
  2. Step 2: Convert to fraction form
    13,473.22/18,593.04 = 7,811.25/x
  3. Step 3: Cross multiply
    13,473.22x = 18,593.04 × 7,811.25
  4. Step 4: Simplify right side
    13,473.22x = 145,234,883.70
  5. Step 5: Solve for x
    x = 145,234,883.70/13,473.22
  6. Step 6: Final answer
    x = 10,779.52

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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.