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Finding the Fourth Proportional to 7,805.36, 10,771.08 and 4,663.28

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Solution

The fourth proportional to 7,805.36, 10,771.08 and 4,663.28 is: 6,435.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.36 : 10,771.08 = 4,663.28 : x
  2. Step 2: Convert to fraction form
    7,805.36/10,771.08 = 4,663.28/x
  3. Step 3: Cross multiply
    7,805.36x = 10,771.08 × 4,663.28
  4. Step 4: Simplify right side
    7,805.36x = 50,228,561.94
  5. Step 5: Solve for x
    x = 50,228,561.94/7,805.36
  6. Step 6: Final answer
    x = 6,435.14

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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.