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Finding the Fourth Proportional to 19,795.67, 29,672.04 and 9,911.11

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Solution

The fourth proportional to 19,795.67, 29,672.04 and 9,911.11 is: 14,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795.67 : 29,672.04 = 9,911.11 : x
  2. Step 2: Convert to fraction form
    19,795.67/29,672.04 = 9,911.11/x
  3. Step 3: Cross multiply
    19,795.67x = 29,672.04 × 9,911.11
  4. Step 4: Simplify right side
    19,795.67x = 294,082,852.36
  5. Step 5: Solve for x
    x = 294,082,852.36/19,795.67
  6. Step 6: Final answer
    x = 14,855.92

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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.