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Finding the Fourth Proportional to 19,842.85, 27,383.02 and 10,768.01

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Solution

The fourth proportional to 19,842.85, 27,383.02 and 10,768.01 is: 14,859.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.85 : 27,383.02 = 10,768.01 : x
  2. Step 2: Convert to fraction form
    19,842.85/27,383.02 = 10,768.01/x
  3. Step 3: Cross multiply
    19,842.85x = 27,383.02 × 10,768.01
  4. Step 4: Simplify right side
    19,842.85x = 294,860,674.73
  5. Step 5: Solve for x
    x = 294,860,674.73/19,842.85
  6. Step 6: Final answer
    x = 14,859.80

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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.