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Finding the Fourth Proportional to 12,736.66, 17,573.88 and 7,699.88

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Solution

The fourth proportional to 12,736.66, 17,573.88 and 7,699.88 is: 10,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.66 : 17,573.88 = 7,699.88 : x
  2. Step 2: Convert to fraction form
    12,736.66/17,573.88 = 7,699.88/x
  3. Step 3: Cross multiply
    12,736.66x = 17,573.88 × 7,699.88
  4. Step 4: Simplify right side
    12,736.66x = 135,316,767.13
  5. Step 5: Solve for x
    x = 135,316,767.13/12,736.66
  6. Step 6: Final answer
    x = 10,624.20

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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.