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Finding the Fourth Proportional to 13,341.67, 18,411.77 and 7,373.59

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Solution

The fourth proportional to 13,341.67, 18,411.77 and 7,373.59 is: 10,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.67 : 18,411.77 = 7,373.59 : x
  2. Step 2: Convert to fraction form
    13,341.67/18,411.77 = 7,373.59/x
  3. Step 3: Cross multiply
    13,341.67x = 18,411.77 × 7,373.59
  4. Step 4: Simplify right side
    13,341.67x = 135,760,843.15
  5. Step 5: Solve for x
    x = 135,760,843.15/13,341.67
  6. Step 6: Final answer
    x = 10,175.70

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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.