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Finding the Fourth Proportional to 40,698.24, 60,856.92 and 28,975.92

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Solution

The fourth proportional to 40,698.24, 60,856.92 and 28,975.92 is: 43,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698.24 : 60,856.92 = 28,975.92 : x
  2. Step 2: Convert to fraction form
    40,698.24/60,856.92 = 28,975.92/x
  3. Step 3: Cross multiply
    40,698.24x = 60,856.92 × 28,975.92
  4. Step 4: Simplify right side
    40,698.24x = 1,763,385,245.37
  5. Step 5: Solve for x
    x = 1,763,385,245.37/40,698.24
  6. Step 6: Final answer
    x = 43,328.29

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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.