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Finding the Fourth Proportional to 20,551.16, 30,834.90 and 6,700.28

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Solution

The fourth proportional to 20,551.16, 30,834.90 and 6,700.28 is: 10,053.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.16 : 30,834.90 = 6,700.28 : x
  2. Step 2: Convert to fraction form
    20,551.16/30,834.90 = 6,700.28/x
  3. Step 3: Cross multiply
    20,551.16x = 30,834.90 × 6,700.28
  4. Step 4: Simplify right side
    20,551.16x = 206,602,463.77
  5. Step 5: Solve for x
    x = 206,602,463.77/20,551.16
  6. Step 6: Final answer
    x = 10,053.08

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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.