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Finding the Fourth Proportional to 27,075.60, 40,591.80 and 11,480.40

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Solution

The fourth proportional to 27,075.60, 40,591.80 and 11,480.40 is: 17,211.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,075.60 : 40,591.80 = 11,480.40 : x
  2. Step 2: Convert to fraction form
    27,075.60/40,591.80 = 11,480.40/x
  3. Step 3: Cross multiply
    27,075.60x = 40,591.80 × 11,480.40
  4. Step 4: Simplify right side
    27,075.60x = 466,010,100.72
  5. Step 5: Solve for x
    x = 466,010,100.72/27,075.60
  6. Step 6: Final answer
    x = 17,211.44

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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.