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Finding the Fourth Proportional to 14,626.88, 20,185.44 and 8,339.84

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Solution

The fourth proportional to 14,626.88, 20,185.44 and 8,339.84 is: 11,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,626.88 : 20,185.44 = 8,339.84 : x
  2. Step 2: Convert to fraction form
    14,626.88/20,185.44 = 8,339.84/x
  3. Step 3: Cross multiply
    14,626.88x = 20,185.44 × 8,339.84
  4. Step 4: Simplify right side
    14,626.88x = 168,343,339.93
  5. Step 5: Solve for x
    x = 168,343,339.93/14,626.88
  6. Step 6: Final answer
    x = 11,509.18

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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.