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Finding the Fourth Proportional to 16,837.60, 25,245.60 and 6,980.80

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Solution

The fourth proportional to 16,837.60, 25,245.60 and 6,980.80 is: 10,466.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,837.60 : 25,245.60 = 6,980.80 : x
  2. Step 2: Convert to fraction form
    16,837.60/25,245.60 = 6,980.80/x
  3. Step 3: Cross multiply
    16,837.60x = 25,245.60 × 6,980.80
  4. Step 4: Simplify right side
    16,837.60x = 176,234,484.48
  5. Step 5: Solve for x
    x = 176,234,484.48/16,837.60
  6. Step 6: Final answer
    x = 10,466.72

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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.