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Finding the Fourth Proportional to 19,094.94, 28,612.44 and 7,401.78

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Solution

The fourth proportional to 19,094.94, 28,612.44 and 7,401.78 is: 11,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,094.94 : 28,612.44 = 7,401.78 : x
  2. Step 2: Convert to fraction form
    19,094.94/28,612.44 = 7,401.78/x
  3. Step 3: Cross multiply
    19,094.94x = 28,612.44 × 7,401.78
  4. Step 4: Simplify right side
    19,094.94x = 211,782,986.14
  5. Step 5: Solve for x
    x = 211,782,986.14/19,094.94
  6. Step 6: Final answer
    x = 11,091.05

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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.