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Finding the Fourth Proportional to 13,346.58, 18,409.98 and 10,700.31

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Solution

The fourth proportional to 13,346.58, 18,409.98 and 10,700.31 is: 14,759.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.58 : 18,409.98 = 10,700.31 : x
  2. Step 2: Convert to fraction form
    13,346.58/18,409.98 = 10,700.31/x
  3. Step 3: Cross multiply
    13,346.58x = 18,409.98 × 10,700.31
  4. Step 4: Simplify right side
    13,346.58x = 196,992,493.09
  5. Step 5: Solve for x
    x = 196,992,493.09/13,346.58
  6. Step 6: Final answer
    x = 14,759.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.