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Finding the Fourth Proportional to 4,679.93, 7,013.80 and 1,903.36

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Solution

The fourth proportional to 4,679.93, 7,013.80 and 1,903.36 is: 2,852.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.93 : 7,013.80 = 1,903.36 : x
  2. Step 2: Convert to fraction form
    4,679.93/7,013.80 = 1,903.36/x
  3. Step 3: Cross multiply
    4,679.93x = 7,013.80 × 1,903.36
  4. Step 4: Simplify right side
    4,679.93x = 13,349,786.37
  5. Step 5: Solve for x
    x = 13,349,786.37/4,679.93
  6. Step 6: Final answer
    x = 2,852.56

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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.