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Finding the Fourth Proportional to 19,098.04, 28,647.54 and 5,247

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Solution

The fourth proportional to 19,098.04, 28,647.54 and 5,247 is: 7,870.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,098.04 : 28,647.54 = 5,247 : x
  2. Step 2: Convert to fraction form
    19,098.04/28,647.54 = 5,247/x
  3. Step 3: Cross multiply
    19,098.04x = 28,647.54 × 5,247
  4. Step 4: Simplify right side
    19,098.04x = 150,313,642.38
  5. Step 5: Solve for x
    x = 150,313,642.38/19,098.04
  6. Step 6: Final answer
    x = 7,870.63

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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.