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Finding the Fourth Proportional to 13,172.51, 18,177.80 and 7,204.16

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Solution

The fourth proportional to 13,172.51, 18,177.80 and 7,204.16 is: 9,941.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.51 : 18,177.80 = 7,204.16 : x
  2. Step 2: Convert to fraction form
    13,172.51/18,177.80 = 7,204.16/x
  3. Step 3: Cross multiply
    13,172.51x = 18,177.80 × 7,204.16
  4. Step 4: Simplify right side
    13,172.51x = 130,955,706.77
  5. Step 5: Solve for x
    x = 130,955,706.77/13,172.51
  6. Step 6: Final answer
    x = 9,941.59

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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.