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Finding the Fourth Proportional to 23,638.98, 32,620.98 and 13,028.61

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Solution

The fourth proportional to 23,638.98, 32,620.98 and 13,028.61 is: 17,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,638.98 : 32,620.98 = 13,028.61 : x
  2. Step 2: Convert to fraction form
    23,638.98/32,620.98 = 13,028.61/x
  3. Step 3: Cross multiply
    23,638.98x = 32,620.98 × 13,028.61
  4. Step 4: Simplify right side
    23,638.98x = 425,006,026.24
  5. Step 5: Solve for x
    x = 425,006,026.24/23,638.98
  6. Step 6: Final answer
    x = 17,979.03

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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.