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Finding the Fourth Proportional to 14,053.16, 19,393.02 and 7,679.79

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Solution

The fourth proportional to 14,053.16, 19,393.02 and 7,679.79 is: 10,597.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,053.16 : 19,393.02 = 7,679.79 : x
  2. Step 2: Convert to fraction form
    14,053.16/19,393.02 = 7,679.79/x
  3. Step 3: Cross multiply
    14,053.16x = 19,393.02 × 7,679.79
  4. Step 4: Simplify right side
    14,053.16x = 148,934,321.07
  5. Step 5: Solve for x
    x = 148,934,321.07/14,053.16
  6. Step 6: Final answer
    x = 10,597.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.