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Finding the Fourth Proportional to 19,487.80, 29,224.47 and 7,004.46

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Solution

The fourth proportional to 19,487.80, 29,224.47 and 7,004.46 is: 10,504.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.80 : 29,224.47 = 7,004.46 : x
  2. Step 2: Convert to fraction form
    19,487.80/29,224.47 = 7,004.46/x
  3. Step 3: Cross multiply
    19,487.80x = 29,224.47 × 7,004.46
  4. Step 4: Simplify right side
    19,487.80x = 204,701,631.14
  5. Step 5: Solve for x
    x = 204,701,631.14/19,487.80
  6. Step 6: Final answer
    x = 10,504.09

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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.