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Finding the Fourth Proportional to 14,485.66, 19,991.88 and 8,823.73

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Solution

The fourth proportional to 14,485.66, 19,991.88 and 8,823.73 is: 12,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,485.66 : 19,991.88 = 8,823.73 : x
  2. Step 2: Convert to fraction form
    14,485.66/19,991.88 = 8,823.73/x
  3. Step 3: Cross multiply
    14,485.66x = 19,991.88 × 8,823.73
  4. Step 4: Simplify right side
    14,485.66x = 176,402,951.31
  5. Step 5: Solve for x
    x = 176,402,951.31/14,485.66
  6. Step 6: Final answer
    x = 12,177.76

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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.