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Finding the Fourth Proportional to 17,620.47, 26,415.45 and 16,641.99

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Solution

The fourth proportional to 17,620.47, 26,415.45 and 16,641.99 is: 24,948.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.47 : 26,415.45 = 16,641.99 : x
  2. Step 2: Convert to fraction form
    17,620.47/26,415.45 = 16,641.99/x
  3. Step 3: Cross multiply
    17,620.47x = 26,415.45 × 16,641.99
  4. Step 4: Simplify right side
    17,620.47x = 439,605,654.75
  5. Step 5: Solve for x
    x = 439,605,654.75/17,620.47
  6. Step 6: Final answer
    x = 24,948.58

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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.