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Finding the Fourth Proportional to 12,699.75, 17,525.46 and 7,034.46

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Solution

The fourth proportional to 12,699.75, 17,525.46 and 7,034.46 is: 9,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.75 : 17,525.46 = 7,034.46 : x
  2. Step 2: Convert to fraction form
    12,699.75/17,525.46 = 7,034.46/x
  3. Step 3: Cross multiply
    12,699.75x = 17,525.46 × 7,034.46
  4. Step 4: Simplify right side
    12,699.75x = 123,282,147.35
  5. Step 5: Solve for x
    x = 123,282,147.35/12,699.75
  6. Step 6: Final answer
    x = 9,707.45

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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.