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Finding the Fourth Proportional to 12,555.40, 17,326.02 and 7,249.48

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Solution

The fourth proportional to 12,555.40, 17,326.02 and 7,249.48 is: 10,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.40 : 17,326.02 = 7,249.48 : x
  2. Step 2: Convert to fraction form
    12,555.40/17,326.02 = 7,249.48/x
  3. Step 3: Cross multiply
    12,555.40x = 17,326.02 × 7,249.48
  4. Step 4: Simplify right side
    12,555.40x = 125,604,635.47
  5. Step 5: Solve for x
    x = 125,604,635.47/12,555.40
  6. Step 6: Final answer
    x = 10,004.03

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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.