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Finding the Fourth Proportional to 12,064.85, 16,659.63 and 9,075.48

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Solution

The fourth proportional to 12,064.85, 16,659.63 and 9,075.48 is: 12,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,064.85 : 16,659.63 = 9,075.48 : x
  2. Step 2: Convert to fraction form
    12,064.85/16,659.63 = 9,075.48/x
  3. Step 3: Cross multiply
    12,064.85x = 16,659.63 × 9,075.48
  4. Step 4: Simplify right side
    12,064.85x = 151,194,138.87
  5. Step 5: Solve for x
    x = 151,194,138.87/12,064.85
  6. Step 6: Final answer
    x = 12,531.79

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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.