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Finding the Fourth Proportional to 19,903.36, 29,851.36 and 14,041.92

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Solution

The fourth proportional to 19,903.36, 29,851.36 and 14,041.92 is: 21,060.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.36 : 29,851.36 = 14,041.92 : x
  2. Step 2: Convert to fraction form
    19,903.36/29,851.36 = 14,041.92/x
  3. Step 3: Cross multiply
    19,903.36x = 29,851.36 × 14,041.92
  4. Step 4: Simplify right side
    19,903.36x = 419,170,409.01
  5. Step 5: Solve for x
    x = 419,170,409.01/19,903.36
  6. Step 6: Final answer
    x = 21,060.28

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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.