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Finding the Fourth Proportional to 19,893.72, 29,839.78 and 6,746.11

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Solution

The fourth proportional to 19,893.72, 29,839.78 and 6,746.11 is: 10,118.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,893.72 : 29,839.78 = 6,746.11 : x
  2. Step 2: Convert to fraction form
    19,893.72/29,839.78 = 6,746.11/x
  3. Step 3: Cross multiply
    19,893.72x = 29,839.78 × 6,746.11
  4. Step 4: Simplify right side
    19,893.72x = 201,302,438.26
  5. Step 5: Solve for x
    x = 201,302,438.26/19,893.72
  6. Step 6: Final answer
    x = 10,118.89

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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.