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Finding the Fourth Proportional to 19,480.58, 29,213.58 and 15,369.02

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Solution

The fourth proportional to 19,480.58, 29,213.58 and 15,369.02 is: 23,047.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,480.58 : 29,213.58 = 15,369.02 : x
  2. Step 2: Convert to fraction form
    19,480.58/29,213.58 = 15,369.02/x
  3. Step 3: Cross multiply
    19,480.58x = 29,213.58 × 15,369.02
  4. Step 4: Simplify right side
    19,480.58x = 448,984,225.96
  5. Step 5: Solve for x
    x = 448,984,225.96/19,480.58
  6. Step 6: Final answer
    x = 23,047.78

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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.