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Finding the Fourth Proportional to 4,487.65, 6,731.06 and 1,368.34

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Solution

The fourth proportional to 4,487.65, 6,731.06 and 1,368.34 is: 2,052.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,487.65 : 6,731.06 = 1,368.34 : x
  2. Step 2: Convert to fraction form
    4,487.65/6,731.06 = 1,368.34/x
  3. Step 3: Cross multiply
    4,487.65x = 6,731.06 × 1,368.34
  4. Step 4: Simplify right side
    4,487.65x = 9,210,338.14
  5. Step 5: Solve for x
    x = 9,210,338.14/4,487.65
  6. Step 6: Final answer
    x = 2,052.38

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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.