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Finding the Fourth Proportional to 9,782.38, 13,499.59 and 5,534.27

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Solution

The fourth proportional to 9,782.38, 13,499.59 and 5,534.27 is: 7,637.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782.38 : 13,499.59 = 5,534.27 : x
  2. Step 2: Convert to fraction form
    9,782.38/13,499.59 = 5,534.27/x
  3. Step 3: Cross multiply
    9,782.38x = 13,499.59 × 5,534.27
  4. Step 4: Simplify right side
    9,782.38x = 74,710,375.95
  5. Step 5: Solve for x
    x = 74,710,375.95/9,782.38
  6. Step 6: Final answer
    x = 7,637.24

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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.