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Finding the Fourth Proportional to 4,367.40, 6,551.03 and 1,080.50

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Solution

The fourth proportional to 4,367.40, 6,551.03 and 1,080.50 is: 1,620.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,367.40 : 6,551.03 = 1,080.50 : x
  2. Step 2: Convert to fraction form
    4,367.40/6,551.03 = 1,080.50/x
  3. Step 3: Cross multiply
    4,367.40x = 6,551.03 × 1,080.50
  4. Step 4: Simplify right side
    4,367.40x = 7,078,349.76
  5. Step 5: Solve for x
    x = 7,078,349.76/4,367.40
  6. Step 6: Final answer
    x = 1,620.72

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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.