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Finding the Fourth Proportional to 19,487.30, 29,233.65 and 7,004.30

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Solution

The fourth proportional to 19,487.30, 29,233.65 and 7,004.30 is: 10,507.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.30 : 29,233.65 = 7,004.30 : x
  2. Step 2: Convert to fraction form
    19,487.30/29,233.65 = 7,004.30/x
  3. Step 3: Cross multiply
    19,487.30x = 29,233.65 × 7,004.30
  4. Step 4: Simplify right side
    19,487.30x = 204,761,254.70
  5. Step 5: Solve for x
    x = 204,761,254.70/19,487.30
  6. Step 6: Final answer
    x = 10,507.42

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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.