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Finding the Fourth Proportional to 20,549.35, 30,828.65 and 6,510.22

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Solution

The fourth proportional to 20,549.35, 30,828.65 and 6,510.22 is: 9,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.35 : 30,828.65 = 6,510.22 : x
  2. Step 2: Convert to fraction form
    20,549.35/30,828.65 = 6,510.22/x
  3. Step 3: Cross multiply
    20,549.35x = 30,828.65 × 6,510.22
  4. Step 4: Simplify right side
    20,549.35x = 200,701,293.80
  5. Step 5: Solve for x
    x = 200,701,293.80/20,549.35
  6. Step 6: Final answer
    x = 9,766.80

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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.