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Finding the Fourth Proportional to 10,012.96, 15,020.88 and 3,088

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Solution

The fourth proportional to 10,012.96, 15,020.88 and 3,088 is: 4,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.96 : 15,020.88 = 3,088 : x
  2. Step 2: Convert to fraction form
    10,012.96/15,020.88 = 3,088/x
  3. Step 3: Cross multiply
    10,012.96x = 15,020.88 × 3,088
  4. Step 4: Simplify right side
    10,012.96x = 46,384,477.44
  5. Step 5: Solve for x
    x = 46,384,477.44/10,012.96
  6. Step 6: Final answer
    x = 4,632.44

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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.