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Finding the Fourth Proportional to 10,404, 15,603.18 and 4,851.92

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Solution

The fourth proportional to 10,404, 15,603.18 and 4,851.92 is: 7,276.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404 : 15,603.18 = 4,851.92 : x
  2. Step 2: Convert to fraction form
    10,404/15,603.18 = 4,851.92/x
  3. Step 3: Cross multiply
    10,404x = 15,603.18 × 4,851.92
  4. Step 4: Simplify right side
    10,404x = 75,705,303.09
  5. Step 5: Solve for x
    x = 75,705,303.09/10,404
  6. Step 6: Final answer
    x = 7,276.56

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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.