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Finding the Fourth Proportional to 8,840.97, 13,238.78 and 7,376.49

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Solution

The fourth proportional to 8,840.97, 13,238.78 and 7,376.49 is: 11,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.97 : 13,238.78 = 7,376.49 : x
  2. Step 2: Convert to fraction form
    8,840.97/13,238.78 = 7,376.49/x
  3. Step 3: Cross multiply
    8,840.97x = 13,238.78 × 7,376.49
  4. Step 4: Simplify right side
    8,840.97x = 97,655,691.40
  5. Step 5: Solve for x
    x = 97,655,691.40/8,840.97
  6. Step 6: Final answer
    x = 11,045.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.