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Finding the Fourth Proportional to 12,756.97, 17,607.40 and 7,093.65

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Solution

The fourth proportional to 12,756.97, 17,607.40 and 7,093.65 is: 9,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.97 : 17,607.40 = 7,093.65 : x
  2. Step 2: Convert to fraction form
    12,756.97/17,607.40 = 7,093.65/x
  3. Step 3: Cross multiply
    12,756.97x = 17,607.40 × 7,093.65
  4. Step 4: Simplify right side
    12,756.97x = 124,900,733.01
  5. Step 5: Solve for x
    x = 124,900,733.01/12,756.97
  6. Step 6: Final answer
    x = 9,790.78

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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.