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Finding the Fourth Proportional to 16,995.58, 25,490.74 and 8,681.74

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Solution

The fourth proportional to 16,995.58, 25,490.74 and 8,681.74 is: 13,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,995.58 : 25,490.74 = 8,681.74 : x
  2. Step 2: Convert to fraction form
    16,995.58/25,490.74 = 8,681.74/x
  3. Step 3: Cross multiply
    16,995.58x = 25,490.74 × 8,681.74
  4. Step 4: Simplify right side
    16,995.58x = 221,304,040.81
  5. Step 5: Solve for x
    x = 221,304,040.81/16,995.58
  6. Step 6: Final answer
    x = 13,021.27

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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.