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Finding the Fourth Proportional to 14,246.88, 19,661.16 and 7,960.44

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Solution

The fourth proportional to 14,246.88, 19,661.16 and 7,960.44 is: 10,985.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,246.88 : 19,661.16 = 7,960.44 : x
  2. Step 2: Convert to fraction form
    14,246.88/19,661.16 = 7,960.44/x
  3. Step 3: Cross multiply
    14,246.88x = 19,661.16 × 7,960.44
  4. Step 4: Simplify right side
    14,246.88x = 156,511,484.51
  5. Step 5: Solve for x
    x = 156,511,484.51/14,246.88
  6. Step 6: Final answer
    x = 10,985.67

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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.