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Finding the Fourth Proportional to 11,615.54, 16,027.08 and 7,075.17

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Solution

The fourth proportional to 11,615.54, 16,027.08 and 7,075.17 is: 9,762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.54 : 16,027.08 = 7,075.17 : x
  2. Step 2: Convert to fraction form
    11,615.54/16,027.08 = 7,075.17/x
  3. Step 3: Cross multiply
    11,615.54x = 16,027.08 × 7,075.17
  4. Step 4: Simplify right side
    11,615.54x = 113,394,315.60
  5. Step 5: Solve for x
    x = 113,394,315.60/11,615.54
  6. Step 6: Final answer
    x = 9,762.30

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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.