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Finding the Fourth Proportional to 7,200.65, 10,802.49 and 2,270.63

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Solution

The fourth proportional to 7,200.65, 10,802.49 and 2,270.63 is: 3,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.65 : 10,802.49 = 2,270.63 : x
  2. Step 2: Convert to fraction form
    7,200.65/10,802.49 = 2,270.63/x
  3. Step 3: Cross multiply
    7,200.65x = 10,802.49 × 2,270.63
  4. Step 4: Simplify right side
    7,200.65x = 24,528,482.75
  5. Step 5: Solve for x
    x = 24,528,482.75/7,200.65
  6. Step 6: Final answer
    x = 3,406.43

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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.