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Finding the Fourth Proportional to 19,493.58, 29,239.62 and 5,453.58

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Solution

The fourth proportional to 19,493.58, 29,239.62 and 5,453.58 is: 8,180.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,493.58 : 29,239.62 = 5,453.58 : x
  2. Step 2: Convert to fraction form
    19,493.58/29,239.62 = 5,453.58/x
  3. Step 3: Cross multiply
    19,493.58x = 29,239.62 × 5,453.58
  4. Step 4: Simplify right side
    19,493.58x = 159,460,606.84
  5. Step 5: Solve for x
    x = 159,460,606.84/19,493.58
  6. Step 6: Final answer
    x = 8,180.16

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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.