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Finding the Fourth Proportional to 5,474.78, 7,554.77 and 3,084.63

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Solution

The fourth proportional to 5,474.78, 7,554.77 and 3,084.63 is: 4,256.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.78 : 7,554.77 = 3,084.63 : x
  2. Step 2: Convert to fraction form
    5,474.78/7,554.77 = 3,084.63/x
  3. Step 3: Cross multiply
    5,474.78x = 7,554.77 × 3,084.63
  4. Step 4: Simplify right side
    5,474.78x = 23,303,670.19
  5. Step 5: Solve for x
    x = 23,303,670.19/5,474.78
  6. Step 6: Final answer
    x = 4,256.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.