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Finding the Fourth Proportional to 13,093.28, 18,069.68 and 7,504.28

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Solution

The fourth proportional to 13,093.28, 18,069.68 and 7,504.28 is: 10,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.28 : 18,069.68 = 7,504.28 : x
  2. Step 2: Convert to fraction form
    13,093.28/18,069.68 = 7,504.28/x
  3. Step 3: Cross multiply
    13,093.28x = 18,069.68 × 7,504.28
  4. Step 4: Simplify right side
    13,093.28x = 135,599,938.23
  5. Step 5: Solve for x
    x = 135,599,938.23/13,093.28
  6. Step 6: Final answer
    x = 10,356.45

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1.5x scale

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.