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Finding the Fourth Proportional to 13,038.13, 17,992.94 and 7,373.22

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Solution

The fourth proportional to 13,038.13, 17,992.94 and 7,373.22 is: 10,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.13 : 17,992.94 = 7,373.22 : x
  2. Step 2: Convert to fraction form
    13,038.13/17,992.94 = 7,373.22/x
  3. Step 3: Cross multiply
    13,038.13x = 17,992.94 × 7,373.22
  4. Step 4: Simplify right side
    13,038.13x = 132,665,905.07
  5. Step 5: Solve for x
    x = 132,665,905.07/13,038.13
  6. Step 6: Final answer
    x = 10,175.22

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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.