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Finding the Fourth Proportional to 9,364.03, 12,922.73 and 5,385.14

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Solution

The fourth proportional to 9,364.03, 12,922.73 and 5,385.14 is: 7,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.03 : 12,922.73 = 5,385.14 : x
  2. Step 2: Convert to fraction form
    9,364.03/12,922.73 = 5,385.14/x
  3. Step 3: Cross multiply
    9,364.03x = 12,922.73 × 5,385.14
  4. Step 4: Simplify right side
    9,364.03x = 69,590,717.64
  5. Step 5: Solve for x
    x = 69,590,717.64/9,364.03
  6. Step 6: Final answer
    x = 7,431.71

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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.