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Finding the Fourth Proportional to 19,197.01, 28,775.78 and 7,348

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Solution

The fourth proportional to 19,197.01, 28,775.78 and 7,348 is: 11,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.01 : 28,775.78 = 7,348 : x
  2. Step 2: Convert to fraction form
    19,197.01/28,775.78 = 7,348/x
  3. Step 3: Cross multiply
    19,197.01x = 28,775.78 × 7,348
  4. Step 4: Simplify right side
    19,197.01x = 211,444,431.44
  5. Step 5: Solve for x
    x = 211,444,431.44/19,197.01
  6. Step 6: Final answer
    x = 11,014.45

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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.