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Finding the Fourth Proportional to 50,491.60, 75,737.40 and 36,421.90

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Solution

The fourth proportional to 50,491.60, 75,737.40 and 36,421.90 is: 54,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,491.60 : 75,737.40 = 36,421.90 : x
  2. Step 2: Convert to fraction form
    50,491.60/75,737.40 = 36,421.90/x
  3. Step 3: Cross multiply
    50,491.60x = 75,737.40 × 36,421.90
  4. Step 4: Simplify right side
    50,491.60x = 2,758,500,009.06
  5. Step 5: Solve for x
    x = 2,758,500,009.06/50,491.60
  6. Step 6: Final answer
    x = 54,632.85

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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.