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Finding the Fourth Proportional to 92,013.51, 126,978.66 and 51,727.35

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Solution

The fourth proportional to 92,013.51, 126,978.66 and 51,727.35 is: 71,383.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,013.51 : 126,978.66 = 51,727.35 : x
  2. Step 2: Convert to fraction form
    92,013.51/126,978.66 = 51,727.35/x
  3. Step 3: Cross multiply
    92,013.51x = 126,978.66 × 51,727.35
  4. Step 4: Simplify right side
    92,013.51x = 6,568,269,588.35
  5. Step 5: Solve for x
    x = 6,568,269,588.35/92,013.51
  6. Step 6: Final answer
    x = 71,383.75

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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.