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Finding the Fourth Proportional to 9,288.90, 13,921.19 and 8,051.22

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Solution

The fourth proportional to 9,288.90, 13,921.19 and 8,051.22 is: 12,066.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.90 : 13,921.19 = 8,051.22 : x
  2. Step 2: Convert to fraction form
    9,288.90/13,921.19 = 8,051.22/x
  3. Step 3: Cross multiply
    9,288.90x = 13,921.19 × 8,051.22
  4. Step 4: Simplify right side
    9,288.90x = 112,082,563.35
  5. Step 5: Solve for x
    x = 112,082,563.35/9,288.90
  6. Step 6: Final answer
    x = 12,066.29

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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.