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Finding the Fourth Proportional to 8,559.06, 11,813.02 and 5,537.90

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Solution

The fourth proportional to 8,559.06, 11,813.02 and 5,537.90 is: 7,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.06 : 11,813.02 = 5,537.90 : x
  2. Step 2: Convert to fraction form
    8,559.06/11,813.02 = 5,537.90/x
  3. Step 3: Cross multiply
    8,559.06x = 11,813.02 × 5,537.90
  4. Step 4: Simplify right side
    8,559.06x = 65,419,323.46
  5. Step 5: Solve for x
    x = 65,419,323.46/8,559.06
  6. Step 6: Final answer
    x = 7,643.28

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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.