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Finding the Fourth Proportional to 21,544.98, 32,320.74 and 6,751.98

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Solution

The fourth proportional to 21,544.98, 32,320.74 and 6,751.98 is: 10,128.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,544.98 : 32,320.74 = 6,751.98 : x
  2. Step 2: Convert to fraction form
    21,544.98/32,320.74 = 6,751.98/x
  3. Step 3: Cross multiply
    21,544.98x = 32,320.74 × 6,751.98
  4. Step 4: Simplify right side
    21,544.98x = 218,228,990.07
  5. Step 5: Solve for x
    x = 218,228,990.07/21,544.98
  6. Step 6: Final answer
    x = 10,128.99

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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.