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Finding the Fourth Proportional to 2,415.04, 3,624.60 and 955.20

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Solution

The fourth proportional to 2,415.04, 3,624.60 and 955.20 is: 1,433.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.04 : 3,624.60 = 955.20 : x
  2. Step 2: Convert to fraction form
    2,415.04/3,624.60 = 955.20/x
  3. Step 3: Cross multiply
    2,415.04x = 3,624.60 × 955.20
  4. Step 4: Simplify right side
    2,415.04x = 3,462,217.92
  5. Step 5: Solve for x
    x = 3,462,217.92/2,415.04
  6. Step 6: Final answer
    x = 1,433.61

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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.