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Finding the Fourth Proportional to 12,610.80, 17,400.24 and 7,305.30

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Solution

The fourth proportional to 12,610.80, 17,400.24 and 7,305.30 is: 10,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.80 : 17,400.24 = 7,305.30 : x
  2. Step 2: Convert to fraction form
    12,610.80/17,400.24 = 7,305.30/x
  3. Step 3: Cross multiply
    12,610.80x = 17,400.24 × 7,305.30
  4. Step 4: Simplify right side
    12,610.80x = 127,113,973.27
  5. Step 5: Solve for x
    x = 127,113,973.27/12,610.80
  6. Step 6: Final answer
    x = 10,079.77

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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.