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Finding the Fourth Proportional to 17,759.61, 26,620.92 and 7,225.11

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Solution

The fourth proportional to 17,759.61, 26,620.92 and 7,225.11 is: 10,830.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,759.61 : 26,620.92 = 7,225.11 : x
  2. Step 2: Convert to fraction form
    17,759.61/26,620.92 = 7,225.11/x
  3. Step 3: Cross multiply
    17,759.61x = 26,620.92 × 7,225.11
  4. Step 4: Simplify right side
    17,759.61x = 192,339,075.30
  5. Step 5: Solve for x
    x = 192,339,075.30/17,759.61
  6. Step 6: Final answer
    x = 10,830.14

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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.