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Finding the Fourth Proportional to 9,363.78, 14,048.28 and 2,790.18

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Solution

The fourth proportional to 9,363.78, 14,048.28 and 2,790.18 is: 4,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.78 : 14,048.28 = 2,790.18 : x
  2. Step 2: Convert to fraction form
    9,363.78/14,048.28 = 2,790.18/x
  3. Step 3: Cross multiply
    9,363.78x = 14,048.28 × 2,790.18
  4. Step 4: Simplify right side
    9,363.78x = 39,197,229.89
  5. Step 5: Solve for x
    x = 39,197,229.89/9,363.78
  6. Step 6: Final answer
    x = 4,186.05

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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.