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Finding the Fourth Proportional to 20,177.49, 30,271.08 and 6,326.49

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Solution

The fourth proportional to 20,177.49, 30,271.08 and 6,326.49 is: 9,491.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.49 : 30,271.08 = 6,326.49 : x
  2. Step 2: Convert to fraction form
    20,177.49/30,271.08 = 6,326.49/x
  3. Step 3: Cross multiply
    20,177.49x = 30,271.08 × 6,326.49
  4. Step 4: Simplify right side
    20,177.49x = 191,509,684.91
  5. Step 5: Solve for x
    x = 191,509,684.91/20,177.49
  6. Step 6: Final answer
    x = 9,491.25

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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.