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Finding the Fourth Proportional to 8,888.91, 12,263.18 and 5,351.64

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Solution

The fourth proportional to 8,888.91, 12,263.18 and 5,351.64 is: 7,383.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.91 : 12,263.18 = 5,351.64 : x
  2. Step 2: Convert to fraction form
    8,888.91/12,263.18 = 5,351.64/x
  3. Step 3: Cross multiply
    8,888.91x = 12,263.18 × 5,351.64
  4. Step 4: Simplify right side
    8,888.91x = 65,628,097.86
  5. Step 5: Solve for x
    x = 65,628,097.86/8,888.91
  6. Step 6: Final answer
    x = 7,383.14

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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.