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Finding the Fourth Proportional to 16,291.88, 24,429.62 and 7,959.41

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Solution

The fourth proportional to 16,291.88, 24,429.62 and 7,959.41 is: 11,935.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,291.88 : 24,429.62 = 7,959.41 : x
  2. Step 2: Convert to fraction form
    16,291.88/24,429.62 = 7,959.41/x
  3. Step 3: Cross multiply
    16,291.88x = 24,429.62 × 7,959.41
  4. Step 4: Simplify right side
    16,291.88x = 194,445,442.70
  5. Step 5: Solve for x
    x = 194,445,442.70/16,291.88
  6. Step 6: Final answer
    x = 11,935.11

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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.