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Finding the Fourth Proportional to 18,016.19, 24,855.19 and 12,038.39

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Solution

The fourth proportional to 18,016.19, 24,855.19 and 12,038.39 is: 16,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,016.19 : 24,855.19 = 12,038.39 : x
  2. Step 2: Convert to fraction form
    18,016.19/24,855.19 = 12,038.39/x
  3. Step 3: Cross multiply
    18,016.19x = 24,855.19 × 12,038.39
  4. Step 4: Simplify right side
    18,016.19x = 299,216,470.74
  5. Step 5: Solve for x
    x = 299,216,470.74/18,016.19
  6. Step 6: Final answer
    x = 16,608.20

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.