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Finding the Fourth Proportional to 12,625.56, 17,421.48 and 7,036.56

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Solution

The fourth proportional to 12,625.56, 17,421.48 and 7,036.56 is: 9,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.56 : 17,421.48 = 7,036.56 : x
  2. Step 2: Convert to fraction form
    12,625.56/17,421.48 = 7,036.56/x
  3. Step 3: Cross multiply
    12,625.56x = 17,421.48 × 7,036.56
  4. Step 4: Simplify right side
    12,625.56x = 122,587,289.31
  5. Step 5: Solve for x
    x = 122,587,289.31/12,625.56
  6. Step 6: Final answer
    x = 9,709.45

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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.