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Finding the Fourth Proportional to 13,698.87, 20,548.44 and 4,927.65

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Solution

The fourth proportional to 13,698.87, 20,548.44 and 4,927.65 is: 7,391.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.87 : 20,548.44 = 4,927.65 : x
  2. Step 2: Convert to fraction form
    13,698.87/20,548.44 = 4,927.65/x
  3. Step 3: Cross multiply
    13,698.87x = 20,548.44 × 4,927.65
  4. Step 4: Simplify right side
    13,698.87x = 101,255,520.37
  5. Step 5: Solve for x
    x = 101,255,520.37/13,698.87
  6. Step 6: Final answer
    x = 7,391.52

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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.