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Finding the Fourth Proportional to 4,938.09, 7,405.92 and 1,475.34

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Solution

The fourth proportional to 4,938.09, 7,405.92 and 1,475.34 is: 2,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.09 : 7,405.92 = 1,475.34 : x
  2. Step 2: Convert to fraction form
    4,938.09/7,405.92 = 1,475.34/x
  3. Step 3: Cross multiply
    4,938.09x = 7,405.92 × 1,475.34
  4. Step 4: Simplify right side
    4,938.09x = 10,926,250.01
  5. Step 5: Solve for x
    x = 10,926,250.01/4,938.09
  6. Step 6: Final answer
    x = 2,212.65

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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.