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Finding the Fourth Proportional to 18,808.76, 25,958.93 and 10,849.29

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Solution

The fourth proportional to 18,808.76, 25,958.93 and 10,849.29 is: 14,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808.76 : 25,958.93 = 10,849.29 : x
  2. Step 2: Convert to fraction form
    18,808.76/25,958.93 = 10,849.29/x
  3. Step 3: Cross multiply
    18,808.76x = 25,958.93 × 10,849.29
  4. Step 4: Simplify right side
    18,808.76x = 281,635,905.41
  5. Step 5: Solve for x
    x = 281,635,905.41/18,808.76
  6. Step 6: Final answer
    x = 14,973.66

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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.