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Finding the Fourth Proportional to 26,543.90, 39,824.90 and 16,671.62

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Solution

The fourth proportional to 26,543.90, 39,824.90 and 16,671.62 is: 25,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,543.90 : 39,824.90 = 16,671.62 : x
  2. Step 2: Convert to fraction form
    26,543.90/39,824.90 = 16,671.62/x
  3. Step 3: Cross multiply
    26,543.90x = 39,824.90 × 16,671.62
  4. Step 4: Simplify right side
    26,543.90x = 663,945,316.86
  5. Step 5: Solve for x
    x = 663,945,316.86/26,543.90
  6. Step 6: Final answer
    x = 25,013.11

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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.