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Finding the Fourth Proportional to 22,672.70, 34,009.05 and 20,210.30

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Solution

The fourth proportional to 22,672.70, 34,009.05 and 20,210.30 is: 30,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,672.70 : 34,009.05 = 20,210.30 : x
  2. Step 2: Convert to fraction form
    22,672.70/34,009.05 = 20,210.30/x
  3. Step 3: Cross multiply
    22,672.70x = 34,009.05 × 20,210.30
  4. Step 4: Simplify right side
    22,672.70x = 687,333,103.22
  5. Step 5: Solve for x
    x = 687,333,103.22/22,672.70
  6. Step 6: Final answer
    x = 30,315.45

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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.