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Finding the Fourth Proportional to 7,369.65, 11,059.03 and 2,987.15

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Solution

The fourth proportional to 7,369.65, 11,059.03 and 2,987.15 is: 4,482.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.65 : 11,059.03 = 2,987.15 : x
  2. Step 2: Convert to fraction form
    7,369.65/11,059.03 = 2,987.15/x
  3. Step 3: Cross multiply
    7,369.65x = 11,059.03 × 2,987.15
  4. Step 4: Simplify right side
    7,369.65x = 33,034,929.90
  5. Step 5: Solve for x
    x = 33,034,929.90/7,369.65
  6. Step 6: Final answer
    x = 4,482.56

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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.