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Finding the Fourth Proportional to 9,003, 13,503.48 and 2,428.80

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Solution

The fourth proportional to 9,003, 13,503.48 and 2,428.80 is: 3,642.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,003 : 13,503.48 = 2,428.80 : x
  2. Step 2: Convert to fraction form
    9,003/13,503.48 = 2,428.80/x
  3. Step 3: Cross multiply
    9,003x = 13,503.48 × 2,428.80
  4. Step 4: Simplify right side
    9,003x = 32,797,252.22
  5. Step 5: Solve for x
    x = 32,797,252.22/9,003
  6. Step 6: Final answer
    x = 3,642.92

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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.