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Finding the Fourth Proportional to 4,975.22, 7,463.95 and 1,643.36

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Solution

The fourth proportional to 4,975.22, 7,463.95 and 1,643.36 is: 2,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.22 : 7,463.95 = 1,643.36 : x
  2. Step 2: Convert to fraction form
    4,975.22/7,463.95 = 1,643.36/x
  3. Step 3: Cross multiply
    4,975.22x = 7,463.95 × 1,643.36
  4. Step 4: Simplify right side
    4,975.22x = 12,265,915.44
  5. Step 5: Solve for x
    x = 12,265,915.44/4,975.22
  6. Step 6: Final answer
    x = 2,465.40

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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.