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Finding the Fourth Proportional to 7,796.32, 10,763.76 and 4,965.28

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Solution

The fourth proportional to 7,796.32, 10,763.76 and 4,965.28 is: 6,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,796.32 : 10,763.76 = 4,965.28 : x
  2. Step 2: Convert to fraction form
    7,796.32/10,763.76 = 4,965.28/x
  3. Step 3: Cross multiply
    7,796.32x = 10,763.76 × 4,965.28
  4. Step 4: Simplify right side
    7,796.32x = 53,445,082.25
  5. Step 5: Solve for x
    x = 53,445,082.25/7,796.32
  6. Step 6: Final answer
    x = 6,855.17

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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.