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Finding the Fourth Proportional to 19,994.32, 29,953.32 and 11,202.64

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Solution

The fourth proportional to 19,994.32, 29,953.32 and 11,202.64 is: 16,782.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.32 : 29,953.32 = 11,202.64 : x
  2. Step 2: Convert to fraction form
    19,994.32/29,953.32 = 11,202.64/x
  3. Step 3: Cross multiply
    19,994.32x = 29,953.32 × 11,202.64
  4. Step 4: Simplify right side
    19,994.32x = 335,556,260.76
  5. Step 5: Solve for x
    x = 335,556,260.76/19,994.32
  6. Step 6: Final answer
    x = 16,782.58

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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.