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Finding the Fourth Proportional to 14,343, 19,793.34 and 8,055.78

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Solution

The fourth proportional to 14,343, 19,793.34 and 8,055.78 is: 11,116.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343 : 19,793.34 = 8,055.78 : x
  2. Step 2: Convert to fraction form
    14,343/19,793.34 = 8,055.78/x
  3. Step 3: Cross multiply
    14,343x = 19,793.34 × 8,055.78
  4. Step 4: Simplify right side
    14,343x = 159,450,792.51
  5. Step 5: Solve for x
    x = 159,450,792.51/14,343
  6. Step 6: Final answer
    x = 11,116.98

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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.