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Finding the Fourth Proportional to 22,653.70, 33,980.55 and 16,821.70

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Solution

The fourth proportional to 22,653.70, 33,980.55 and 16,821.70 is: 25,232.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,653.70 : 33,980.55 = 16,821.70 : x
  2. Step 2: Convert to fraction form
    22,653.70/33,980.55 = 16,821.70/x
  3. Step 3: Cross multiply
    22,653.70x = 33,980.55 × 16,821.70
  4. Step 4: Simplify right side
    22,653.70x = 571,610,617.94
  5. Step 5: Solve for x
    x = 571,610,617.94/22,653.70
  6. Step 6: Final answer
    x = 25,232.55

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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.