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Finding the Fourth Proportional to 9,763.53, 13,473.64 and 5,287.29

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Solution

The fourth proportional to 9,763.53, 13,473.64 and 5,287.29 is: 7,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,763.53 : 13,473.64 = 5,287.29 : x
  2. Step 2: Convert to fraction form
    9,763.53/13,473.64 = 5,287.29/x
  3. Step 3: Cross multiply
    9,763.53x = 13,473.64 × 5,287.29
  4. Step 4: Simplify right side
    9,763.53x = 71,238,998.12
  5. Step 5: Solve for x
    x = 71,238,998.12/9,763.53
  6. Step 6: Final answer
    x = 7,296.44

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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.