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Finding the Fourth Proportional to 9,782.88, 13,500.58 and 5,804.36

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Solution

The fourth proportional to 9,782.88, 13,500.58 and 5,804.36 is: 8,010.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782.88 : 13,500.58 = 5,804.36 : x
  2. Step 2: Convert to fraction form
    9,782.88/13,500.58 = 5,804.36/x
  3. Step 3: Cross multiply
    9,782.88x = 13,500.58 × 5,804.36
  4. Step 4: Simplify right side
    9,782.88x = 78,362,226.53
  5. Step 5: Solve for x
    x = 78,362,226.53/9,782.88
  6. Step 6: Final answer
    x = 8,010.14

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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.