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Finding the Fourth Proportional to 14,885.14, 20,544.16 and 11,127.14

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Solution

The fourth proportional to 14,885.14, 20,544.16 and 11,127.14 is: 15,357.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.14 : 20,544.16 = 11,127.14 : x
  2. Step 2: Convert to fraction form
    14,885.14/20,544.16 = 11,127.14/x
  3. Step 3: Cross multiply
    14,885.14x = 20,544.16 × 11,127.14
  4. Step 4: Simplify right side
    14,885.14x = 228,597,744.50
  5. Step 5: Solve for x
    x = 228,597,744.50/14,885.14
  6. Step 6: Final answer
    x = 15,357.45

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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.