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Finding the Fourth Proportional to 7,020.53, 10,530.80 and 2,403.53

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Solution

The fourth proportional to 7,020.53, 10,530.80 and 2,403.53 is: 3,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.53 : 10,530.80 = 2,403.53 : x
  2. Step 2: Convert to fraction form
    7,020.53/10,530.80 = 2,403.53/x
  3. Step 3: Cross multiply
    7,020.53x = 10,530.80 × 2,403.53
  4. Step 4: Simplify right side
    7,020.53x = 25,311,093.72
  5. Step 5: Solve for x
    x = 25,311,093.72/7,020.53
  6. Step 6: Final answer
    x = 3,605.30

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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.