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Finding the Fourth Proportional to 18,074.40, 27,075.84 and 14,160.48

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Solution

The fourth proportional to 18,074.40, 27,075.84 and 14,160.48 is: 21,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,074.40 : 27,075.84 = 14,160.48 : x
  2. Step 2: Convert to fraction form
    18,074.40/27,075.84 = 14,160.48/x
  3. Step 3: Cross multiply
    18,074.40x = 27,075.84 × 14,160.48
  4. Step 4: Simplify right side
    18,074.40x = 383,406,890.80
  5. Step 5: Solve for x
    x = 383,406,890.80/18,074.40
  6. Step 6: Final answer
    x = 21,212.70

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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.