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Finding the Fourth Proportional to 63,378.19, 87,455.83 and 37,879.48

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Solution

The fourth proportional to 63,378.19, 87,455.83 and 37,879.48 is: 52,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,378.19 : 87,455.83 = 37,879.48 : x
  2. Step 2: Convert to fraction form
    63,378.19/87,455.83 = 37,879.48/x
  3. Step 3: Cross multiply
    63,378.19x = 87,455.83 × 37,879.48
  4. Step 4: Simplify right side
    63,378.19x = 3,312,781,363.37
  5. Step 5: Solve for x
    x = 3,312,781,363.37/63,378.19
  6. Step 6: Final answer
    x = 52,270.05

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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.