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Finding the Fourth Proportional to 33,098.40, 49,642.80 and 9,722.40

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Solution

The fourth proportional to 33,098.40, 49,642.80 and 9,722.40 is: 14,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,098.40 : 49,642.80 = 9,722.40 : x
  2. Step 2: Convert to fraction form
    33,098.40/49,642.80 = 9,722.40/x
  3. Step 3: Cross multiply
    33,098.40x = 49,642.80 × 9,722.40
  4. Step 4: Simplify right side
    33,098.40x = 482,647,158.72
  5. Step 5: Solve for x
    x = 482,647,158.72/33,098.40
  6. Step 6: Final answer
    x = 14,582.19

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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.