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Finding the Fourth Proportional to 18,162.63, 27,254.68 and 9,842.45

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Solution

The fourth proportional to 18,162.63, 27,254.68 and 9,842.45 is: 14,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.63 : 27,254.68 = 9,842.45 : x
  2. Step 2: Convert to fraction form
    18,162.63/27,254.68 = 9,842.45/x
  3. Step 3: Cross multiply
    18,162.63x = 27,254.68 × 9,842.45
  4. Step 4: Simplify right side
    18,162.63x = 268,252,664.29
  5. Step 5: Solve for x
    x = 268,252,664.29/18,162.63
  6. Step 6: Final answer
    x = 14,769.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.