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Finding the Fourth Proportional to 14,485.94, 19,993.71 and 8,822.55

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Solution

The fourth proportional to 14,485.94, 19,993.71 and 8,822.55 is: 12,177.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,485.94 : 19,993.71 = 8,822.55 : x
  2. Step 2: Convert to fraction form
    14,485.94/19,993.71 = 8,822.55/x
  3. Step 3: Cross multiply
    14,485.94x = 19,993.71 × 8,822.55
  4. Step 4: Simplify right side
    14,485.94x = 176,395,506.16
  5. Step 5: Solve for x
    x = 176,395,506.16/14,485.94
  6. Step 6: Final answer
    x = 12,177.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.