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Finding the Fourth Proportional to 12,763.80, 19,054.80 and 10,794.96

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Solution

The fourth proportional to 12,763.80, 19,054.80 and 10,794.96 is: 16,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.80 : 19,054.80 = 10,794.96 : x
  2. Step 2: Convert to fraction form
    12,763.80/19,054.80 = 10,794.96/x
  3. Step 3: Cross multiply
    12,763.80x = 19,054.80 × 10,794.96
  4. Step 4: Simplify right side
    12,763.80x = 205,695,803.81
  5. Step 5: Solve for x
    x = 205,695,803.81/12,763.80
  6. Step 6: Final answer
    x = 16,115.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.