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Finding the Fourth Proportional to 16,855.40, 25,283.10 and 5,761.10

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Solution

The fourth proportional to 16,855.40, 25,283.10 and 5,761.10 is: 8,641.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855.40 : 25,283.10 = 5,761.10 : x
  2. Step 2: Convert to fraction form
    16,855.40/25,283.10 = 5,761.10/x
  3. Step 3: Cross multiply
    16,855.40x = 25,283.10 × 5,761.10
  4. Step 4: Simplify right side
    16,855.40x = 145,658,467.41
  5. Step 5: Solve for x
    x = 145,658,467.41/16,855.40
  6. Step 6: Final answer
    x = 8,641.65

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Half scale
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Double scale
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Similar ratio
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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.