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Finding the Fourth Proportional to 7,305.80, 10,964.10 and 4,839.80

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Solution

The fourth proportional to 7,305.80, 10,964.10 and 4,839.80 is: 7,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.80 : 10,964.10 = 4,839.80 : x
  2. Step 2: Convert to fraction form
    7,305.80/10,964.10 = 4,839.80/x
  3. Step 3: Cross multiply
    7,305.80x = 10,964.10 × 4,839.80
  4. Step 4: Simplify right side
    7,305.80x = 53,064,051.18
  5. Step 5: Solve for x
    x = 53,064,051.18/7,305.80
  6. Step 6: Final answer
    x = 7,263.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.