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Finding the Fourth Proportional to 19,454.18, 29,186.45 and 6,975.45

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Solution

The fourth proportional to 19,454.18, 29,186.45 and 6,975.45 is: 10,465.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,454.18 : 29,186.45 = 6,975.45 : x
  2. Step 2: Convert to fraction form
    19,454.18/29,186.45 = 6,975.45/x
  3. Step 3: Cross multiply
    19,454.18x = 29,186.45 × 6,975.45
  4. Step 4: Simplify right side
    19,454.18x = 203,588,622.65
  5. Step 5: Solve for x
    x = 203,588,622.65/19,454.18
  6. Step 6: Final answer
    x = 10,465.03

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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.