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Finding the Fourth Proportional to 19,873.45, 29,808.35 and 6,724.31

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Solution

The fourth proportional to 19,873.45, 29,808.35 and 6,724.31 is: 10,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.45 : 29,808.35 = 6,724.31 : x
  2. Step 2: Convert to fraction form
    19,873.45/29,808.35 = 6,724.31/x
  3. Step 3: Cross multiply
    19,873.45x = 29,808.35 × 6,724.31
  4. Step 4: Simplify right side
    19,873.45x = 200,440,552.37
  5. Step 5: Solve for x
    x = 200,440,552.37/19,873.45
  6. Step 6: Final answer
    x = 10,085.85

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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.