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Finding the Fourth Proportional to 84,255.84, 126,382.40 and 25,091.84

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Solution

The fourth proportional to 84,255.84, 126,382.40 and 25,091.84 is: 37,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,255.84 : 126,382.40 = 25,091.84 : x
  2. Step 2: Convert to fraction form
    84,255.84/126,382.40 = 25,091.84/x
  3. Step 3: Cross multiply
    84,255.84x = 126,382.40 × 25,091.84
  4. Step 4: Simplify right side
    84,255.84x = 3,171,166,959.62
  5. Step 5: Solve for x
    x = 3,171,166,959.62/84,255.84
  6. Step 6: Final answer
    x = 37,637.35

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1.5x scale

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.