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Finding the Fourth Proportional to 13,093.12, 18,068.40 and 7,504

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Solution

The fourth proportional to 13,093.12, 18,068.40 and 7,504 is: 10,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.12 : 18,068.40 = 7,504 : x
  2. Step 2: Convert to fraction form
    13,093.12/18,068.40 = 7,504/x
  3. Step 3: Cross multiply
    13,093.12x = 18,068.40 × 7,504
  4. Step 4: Simplify right side
    13,093.12x = 135,585,273.60
  5. Step 5: Solve for x
    x = 135,585,273.60/13,093.12
  6. Step 6: Final answer
    x = 10,355.46

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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.