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Finding the Fourth Proportional to 12,798.73, 17,662.76 and 10,670.68

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Solution

The fourth proportional to 12,798.73, 17,662.76 and 10,670.68 is: 14,725.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.73 : 17,662.76 = 10,670.68 : x
  2. Step 2: Convert to fraction form
    12,798.73/17,662.76 = 10,670.68/x
  3. Step 3: Cross multiply
    12,798.73x = 17,662.76 × 10,670.68
  4. Step 4: Simplify right side
    12,798.73x = 188,473,656.20
  5. Step 5: Solve for x
    x = 188,473,656.20/12,798.73
  6. Step 6: Final answer
    x = 14,725.96

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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.