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Finding the Fourth Proportional to 4,911, 7,366.52 and 1,263

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Solution

The fourth proportional to 4,911, 7,366.52 and 1,263 is: 1,894.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911 : 7,366.52 = 1,263 : x
  2. Step 2: Convert to fraction form
    4,911/7,366.52 = 1,263/x
  3. Step 3: Cross multiply
    4,911x = 7,366.52 × 1,263
  4. Step 4: Simplify right side
    4,911x = 9,303,914.76
  5. Step 5: Solve for x
    x = 9,303,914.76/4,911
  6. Step 6: Final answer
    x = 1,894.51

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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.