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Finding the Fourth Proportional to 16,995.66, 25,491.42 and 8,681.68

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Solution

The fourth proportional to 16,995.66, 25,491.42 and 8,681.68 is: 13,021.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,995.66 : 25,491.42 = 8,681.68 : x
  2. Step 2: Convert to fraction form
    16,995.66/25,491.42 = 8,681.68/x
  3. Step 3: Cross multiply
    16,995.66x = 25,491.42 × 8,681.68
  4. Step 4: Simplify right side
    16,995.66x = 221,308,351.19
  5. Step 5: Solve for x
    x = 221,308,351.19/16,995.66
  6. Step 6: Final answer
    x = 13,021.46

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1.5x scale

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.