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Finding the Fourth Proportional to 12,543.63, 17,310.21 and 6,954.63

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Solution

The fourth proportional to 12,543.63, 17,310.21 and 6,954.63 is: 9,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.63 : 17,310.21 = 6,954.63 : x
  2. Step 2: Convert to fraction form
    12,543.63/17,310.21 = 6,954.63/x
  3. Step 3: Cross multiply
    12,543.63x = 17,310.21 × 6,954.63
  4. Step 4: Simplify right side
    12,543.63x = 120,386,105.77
  5. Step 5: Solve for x
    x = 120,386,105.77/12,543.63
  6. Step 6: Final answer
    x = 9,597.39

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Half scale
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Double scale
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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.