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Finding the Fourth Proportional to 20,612.46, 30,920.94 and 6,569.22

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Solution

The fourth proportional to 20,612.46, 30,920.94 and 6,569.22 is: 9,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612.46 : 30,920.94 = 6,569.22 : x
  2. Step 2: Convert to fraction form
    20,612.46/30,920.94 = 6,569.22/x
  3. Step 3: Cross multiply
    20,612.46x = 30,920.94 × 6,569.22
  4. Step 4: Simplify right side
    20,612.46x = 203,126,457.47
  5. Step 5: Solve for x
    x = 203,126,457.47/20,612.46
  6. Step 6: Final answer
    x = 9,854.55

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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.