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Finding the Fourth Proportional to 14,051.34, 19,388.88 and 8,082.18

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Solution

The fourth proportional to 14,051.34, 19,388.88 and 8,082.18 is: 11,152.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,051.34 : 19,388.88 = 8,082.18 : x
  2. Step 2: Convert to fraction form
    14,051.34/19,388.88 = 8,082.18/x
  3. Step 3: Cross multiply
    14,051.34x = 19,388.88 × 8,082.18
  4. Step 4: Simplify right side
    14,051.34x = 156,704,418.16
  5. Step 5: Solve for x
    x = 156,704,418.16/14,051.34
  6. Step 6: Final answer
    x = 11,152.28

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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.