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Finding the Fourth Proportional to 17,906.40, 26,827.20 and 14,601.60

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Solution

The fourth proportional to 17,906.40, 26,827.20 and 14,601.60 is: 21,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,906.40 : 26,827.20 = 14,601.60 : x
  2. Step 2: Convert to fraction form
    17,906.40/26,827.20 = 14,601.60/x
  3. Step 3: Cross multiply
    17,906.40x = 26,827.20 × 14,601.60
  4. Step 4: Simplify right side
    17,906.40x = 391,720,043.52
  5. Step 5: Solve for x
    x = 391,720,043.52/17,906.40
  6. Step 6: Final answer
    x = 21,875.98

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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.