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Finding the Fourth Proportional to 12,610.99, 17,402.99 and 7,305.69

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Solution

The fourth proportional to 12,610.99, 17,402.99 and 7,305.69 is: 10,081.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.99 : 17,402.99 = 7,305.69 : x
  2. Step 2: Convert to fraction form
    12,610.99/17,402.99 = 7,305.69/x
  3. Step 3: Cross multiply
    12,610.99x = 17,402.99 × 7,305.69
  4. Step 4: Simplify right side
    12,610.99x = 127,140,878.75
  5. Step 5: Solve for x
    x = 127,140,878.75/12,610.99
  6. Step 6: Final answer
    x = 10,081.75

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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.