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Finding the Fourth Proportional to 12,791.93, 19,188.02 and 4,898.07

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Solution

The fourth proportional to 12,791.93, 19,188.02 and 4,898.07 is: 7,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.93 : 19,188.02 = 4,898.07 : x
  2. Step 2: Convert to fraction form
    12,791.93/19,188.02 = 4,898.07/x
  3. Step 3: Cross multiply
    12,791.93x = 19,188.02 × 4,898.07
  4. Step 4: Simplify right side
    12,791.93x = 93,984,277.37
  5. Step 5: Solve for x
    x = 93,984,277.37/12,791.93
  6. Step 6: Final answer
    x = 7,347.16

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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.