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Finding the Fourth Proportional to 12,842.96, 17,723.20 and 7,253.92

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Solution

The fourth proportional to 12,842.96, 17,723.20 and 7,253.92 is: 10,010.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842.96 : 17,723.20 = 7,253.92 : x
  2. Step 2: Convert to fraction form
    12,842.96/17,723.20 = 7,253.92/x
  3. Step 3: Cross multiply
    12,842.96x = 17,723.20 × 7,253.92
  4. Step 4: Simplify right side
    12,842.96x = 128,562,674.94
  5. Step 5: Solve for x
    x = 128,562,674.94/12,842.96
  6. Step 6: Final answer
    x = 10,010.36

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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.