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Finding the Fourth Proportional to 13,045.96, 18,003.47 and 7,077.68

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Solution

The fourth proportional to 13,045.96, 18,003.47 and 7,077.68 is: 9,767.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.96 : 18,003.47 = 7,077.68 : x
  2. Step 2: Convert to fraction form
    13,045.96/18,003.47 = 7,077.68/x
  3. Step 3: Cross multiply
    13,045.96x = 18,003.47 × 7,077.68
  4. Step 4: Simplify right side
    13,045.96x = 127,422,741.66
  5. Step 5: Solve for x
    x = 127,422,741.66/13,045.96
  6. Step 6: Final answer
    x = 9,767.22

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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.