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Finding the Fourth Proportional to 12,463.36, 18,718.08 and 9,882.88

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Solution

The fourth proportional to 12,463.36, 18,718.08 and 9,882.88 is: 14,842.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463.36 : 18,718.08 = 9,882.88 : x
  2. Step 2: Convert to fraction form
    12,463.36/18,718.08 = 9,882.88/x
  3. Step 3: Cross multiply
    12,463.36x = 18,718.08 × 9,882.88
  4. Step 4: Simplify right side
    12,463.36x = 184,988,538.47
  5. Step 5: Solve for x
    x = 184,988,538.47/12,463.36
  6. Step 6: Final answer
    x = 14,842.59

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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.