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Finding the Fourth Proportional to 7,003.74, 9,665.04 and 4,019.51

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Solution

The fourth proportional to 7,003.74, 9,665.04 and 4,019.51 is: 5,546.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.74 : 9,665.04 = 4,019.51 : x
  2. Step 2: Convert to fraction form
    7,003.74/9,665.04 = 4,019.51/x
  3. Step 3: Cross multiply
    7,003.74x = 9,665.04 × 4,019.51
  4. Step 4: Simplify right side
    7,003.74x = 38,848,676.61
  5. Step 5: Solve for x
    x = 38,848,676.61/7,003.74
  6. Step 6: Final answer
    x = 5,546.85

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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.