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Finding the Fourth Proportional to 45,874.94, 68,809.07 and 20,582.29

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Solution

The fourth proportional to 45,874.94, 68,809.07 and 20,582.29 is: 30,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,874.94 : 68,809.07 = 20,582.29 : x
  2. Step 2: Convert to fraction form
    45,874.94/68,809.07 = 20,582.29/x
  3. Step 3: Cross multiply
    45,874.94x = 68,809.07 × 20,582.29
  4. Step 4: Simplify right side
    45,874.94x = 1,416,247,889.32
  5. Step 5: Solve for x
    x = 1,416,247,889.32/45,874.94
  6. Step 6: Final answer
    x = 30,871.93

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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.