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Finding the Fourth Proportional to 18,075.04, 27,165.04 and 11,957.92

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Solution

The fourth proportional to 18,075.04, 27,165.04 and 11,957.92 is: 17,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.04 : 27,165.04 = 11,957.92 : x
  2. Step 2: Convert to fraction form
    18,075.04/27,165.04 = 11,957.92/x
  3. Step 3: Cross multiply
    18,075.04x = 27,165.04 × 11,957.92
  4. Step 4: Simplify right side
    18,075.04x = 324,837,375.12
  5. Step 5: Solve for x
    x = 324,837,375.12/18,075.04
  6. Step 6: Final answer
    x = 17,971.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.