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Finding the Fourth Proportional to 12,554.88, 18,824.88 and 4,764.24

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Solution

The fourth proportional to 12,554.88, 18,824.88 and 4,764.24 is: 7,143.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.88 : 18,824.88 = 4,764.24 : x
  2. Step 2: Convert to fraction form
    12,554.88/18,824.88 = 4,764.24/x
  3. Step 3: Cross multiply
    12,554.88x = 18,824.88 × 4,764.24
  4. Step 4: Simplify right side
    12,554.88x = 89,686,246.29
  5. Step 5: Solve for x
    x = 89,686,246.29/12,554.88
  6. Step 6: Final answer
    x = 7,143.54

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1.5x scale

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.