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Finding the Fourth Proportional to 39,773, 59,659.86 and 12,071

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Solution

The fourth proportional to 39,773, 59,659.86 and 12,071 is: 18,106.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,773 : 59,659.86 = 12,071 : x
  2. Step 2: Convert to fraction form
    39,773/59,659.86 = 12,071/x
  3. Step 3: Cross multiply
    39,773x = 59,659.86 × 12,071
  4. Step 4: Simplify right side
    39,773x = 720,154,170.06
  5. Step 5: Solve for x
    x = 720,154,170.06/39,773
  6. Step 6: Final answer
    x = 18,106.61

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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.