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Finding the Fourth Proportional to 13,094.50, 18,070.41 and 7,505.50

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Solution

The fourth proportional to 13,094.50, 18,070.41 and 7,505.50 is: 10,357.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,094.50 : 18,070.41 = 7,505.50 : x
  2. Step 2: Convert to fraction form
    13,094.50/18,070.41 = 7,505.50/x
  3. Step 3: Cross multiply
    13,094.50x = 18,070.41 × 7,505.50
  4. Step 4: Simplify right side
    13,094.50x = 135,627,462.26
  5. Step 5: Solve for x
    x = 135,627,462.26/13,094.50
  6. Step 6: Final answer
    x = 10,357.59

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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.