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Finding the Fourth Proportional to 63,115.40, 87,106.95 and 36,257.85

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Solution

The fourth proportional to 63,115.40, 87,106.95 and 36,257.85 is: 50,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,115.40 : 87,106.95 = 36,257.85 : x
  2. Step 2: Convert to fraction form
    63,115.40/87,106.95 = 36,257.85/x
  3. Step 3: Cross multiply
    63,115.40x = 87,106.95 × 36,257.85
  4. Step 4: Simplify right side
    63,115.40x = 3,158,310,727.06
  5. Step 5: Solve for x
    x = 3,158,310,727.06/63,115.40
  6. Step 6: Final answer
    x = 50,040.25

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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.