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Finding the Fourth Proportional to 30,245, 41,627.94 and 26,636.28

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Solution

The fourth proportional to 30,245, 41,627.94 and 26,636.28 is: 36,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245 : 41,627.94 = 26,636.28 : x
  2. Step 2: Convert to fraction form
    30,245/41,627.94 = 26,636.28/x
  3. Step 3: Cross multiply
    30,245x = 41,627.94 × 26,636.28
  4. Step 4: Simplify right side
    30,245x = 1,108,813,465.66
  5. Step 5: Solve for x
    x = 1,108,813,465.66/30,245
  6. Step 6: Final answer
    x = 36,661.05

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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.