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Finding the Fourth Proportional to 32,392.37, 48,478.84 and 19,920.31

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Solution

The fourth proportional to 32,392.37, 48,478.84 and 19,920.31 is: 29,812.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,392.37 : 48,478.84 = 19,920.31 : x
  2. Step 2: Convert to fraction form
    32,392.37/48,478.84 = 19,920.31/x
  3. Step 3: Cross multiply
    32,392.37x = 48,478.84 × 19,920.31
  4. Step 4: Simplify right side
    32,392.37x = 965,713,350.24
  5. Step 5: Solve for x
    x = 965,713,350.24/32,392.37
  6. Step 6: Final answer
    x = 29,812.99

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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.