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Finding the Fourth Proportional to 16,801.70, 25,206.69 and 6,943.79

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Solution

The fourth proportional to 16,801.70, 25,206.69 and 6,943.79 is: 10,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,801.70 : 25,206.69 = 6,943.79 : x
  2. Step 2: Convert to fraction form
    16,801.70/25,206.69 = 6,943.79/x
  3. Step 3: Cross multiply
    16,801.70x = 25,206.69 × 6,943.79
  4. Step 4: Simplify right side
    16,801.70x = 175,030,051.01
  5. Step 5: Solve for x
    x = 175,030,051.01/16,801.70
  6. Step 6: Final answer
    x = 10,417.40

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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.