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Finding the Fourth Proportional to 18,023.52, 26,984.64 and 14,671.68

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Solution

The fourth proportional to 18,023.52, 26,984.64 and 14,671.68 is: 21,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,023.52 : 26,984.64 = 14,671.68 : x
  2. Step 2: Convert to fraction form
    18,023.52/26,984.64 = 14,671.68/x
  3. Step 3: Cross multiply
    18,023.52x = 26,984.64 × 14,671.68
  4. Step 4: Simplify right side
    18,023.52x = 395,910,003.00
  5. Step 5: Solve for x
    x = 395,910,003.00/18,023.52
  6. Step 6: Final answer
    x = 21,966.30

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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.