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Finding the Fourth Proportional to 45,815.40, 68,698.80 and 16,234.20

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Solution

The fourth proportional to 45,815.40, 68,698.80 and 16,234.20 is: 24,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,815.40 : 68,698.80 = 16,234.20 : x
  2. Step 2: Convert to fraction form
    45,815.40/68,698.80 = 16,234.20/x
  3. Step 3: Cross multiply
    45,815.40x = 68,698.80 × 16,234.20
  4. Step 4: Simplify right side
    45,815.40x = 1,115,270,058.96
  5. Step 5: Solve for x
    x = 1,115,270,058.96/45,815.40
  6. Step 6: Final answer
    x = 24,342.69

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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.