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Finding the Fourth Proportional to 14,993.94, 22,485.78 and 10,821.55

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Solution

The fourth proportional to 14,993.94, 22,485.78 and 10,821.55 is: 16,228.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993.94 : 22,485.78 = 10,821.55 : x
  2. Step 2: Convert to fraction form
    14,993.94/22,485.78 = 10,821.55/x
  3. Step 3: Cross multiply
    14,993.94x = 22,485.78 × 10,821.55
  4. Step 4: Simplify right side
    14,993.94x = 243,330,948.07
  5. Step 5: Solve for x
    x = 243,330,948.07/14,993.94
  6. Step 6: Final answer
    x = 16,228.62

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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.