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Finding the Fourth Proportional to 14,882.82, 20,536.79 and 8,914.34

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Solution

The fourth proportional to 14,882.82, 20,536.79 and 8,914.34 is: 12,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,882.82 : 20,536.79 = 8,914.34 : x
  2. Step 2: Convert to fraction form
    14,882.82/20,536.79 = 8,914.34/x
  3. Step 3: Cross multiply
    14,882.82x = 20,536.79 × 8,914.34
  4. Step 4: Simplify right side
    14,882.82x = 183,071,848.17
  5. Step 5: Solve for x
    x = 183,071,848.17/14,882.82
  6. Step 6: Final answer
    x = 12,300.88

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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.