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Finding the Fourth Proportional to 35,910.40, 49,558.48 and 19,994.40

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Solution

The fourth proportional to 35,910.40, 49,558.48 and 19,994.40 is: 27,593.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,910.40 : 49,558.48 = 19,994.40 : x
  2. Step 2: Convert to fraction form
    35,910.40/49,558.48 = 19,994.40/x
  3. Step 3: Cross multiply
    35,910.40x = 49,558.48 × 19,994.40
  4. Step 4: Simplify right side
    35,910.40x = 990,892,072.51
  5. Step 5: Solve for x
    x = 990,892,072.51/35,910.40
  6. Step 6: Final answer
    x = 27,593.46

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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.