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Finding the Fourth Proportional to 7,130.67, 9,843.03 and 6,383.25

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Solution

The fourth proportional to 7,130.67, 9,843.03 and 6,383.25 is: 8,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.67 : 9,843.03 = 6,383.25 : x
  2. Step 2: Convert to fraction form
    7,130.67/9,843.03 = 6,383.25/x
  3. Step 3: Cross multiply
    7,130.67x = 9,843.03 × 6,383.25
  4. Step 4: Simplify right side
    7,130.67x = 62,830,521.25
  5. Step 5: Solve for x
    x = 62,830,521.25/7,130.67
  6. Step 6: Final answer
    x = 8,811.31

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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.