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Finding the Fourth Proportional to 28,075.55, 42,099.24 and 9,348.99

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Solution

The fourth proportional to 28,075.55, 42,099.24 and 9,348.99 is: 14,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.55 : 42,099.24 = 9,348.99 : x
  2. Step 2: Convert to fraction form
    28,075.55/42,099.24 = 9,348.99/x
  3. Step 3: Cross multiply
    28,075.55x = 42,099.24 × 9,348.99
  4. Step 4: Simplify right side
    28,075.55x = 393,585,250.95
  5. Step 5: Solve for x
    x = 393,585,250.95/28,075.55
  6. Step 6: Final answer
    x = 14,018.79

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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.