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Finding the Fourth Proportional to 15,896.60, 21,937.02 and 8,823.80

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Solution

The fourth proportional to 15,896.60, 21,937.02 and 8,823.80 is: 12,176.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,896.60 : 21,937.02 = 8,823.80 : x
  2. Step 2: Convert to fraction form
    15,896.60/21,937.02 = 8,823.80/x
  3. Step 3: Cross multiply
    15,896.60x = 21,937.02 × 8,823.80
  4. Step 4: Simplify right side
    15,896.60x = 193,567,877.08
  5. Step 5: Solve for x
    x = 193,567,877.08/15,896.60
  6. Step 6: Final answer
    x = 12,176.68

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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.