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Finding the Fourth Proportional to 57,323.80, 85,812.90 and 50,411.80

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Solution

The fourth proportional to 57,323.80, 85,812.90 and 50,411.80 is: 75,465.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,323.80 : 85,812.90 = 50,411.80 : x
  2. Step 2: Convert to fraction form
    57,323.80/85,812.90 = 50,411.80/x
  3. Step 3: Cross multiply
    57,323.80x = 85,812.90 × 50,411.80
  4. Step 4: Simplify right side
    57,323.80x = 4,325,982,752.22
  5. Step 5: Solve for x
    x = 4,325,982,752.22/57,323.80
  6. Step 6: Final answer
    x = 75,465.74

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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.