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Finding the Fourth Proportional to 13,307.22, 18,365.04 and 7,339.41

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Solution

The fourth proportional to 13,307.22, 18,365.04 and 7,339.41 is: 10,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.22 : 18,365.04 = 7,339.41 : x
  2. Step 2: Convert to fraction form
    13,307.22/18,365.04 = 7,339.41/x
  3. Step 3: Cross multiply
    13,307.22x = 18,365.04 × 7,339.41
  4. Step 4: Simplify right side
    13,307.22x = 134,788,558.23
  5. Step 5: Solve for x
    x = 134,788,558.23/13,307.22
  6. Step 6: Final answer
    x = 10,128.98

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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.