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Finding the Fourth Proportional to 32,491.80, 48,737.70 and 7,867.80

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Solution

The fourth proportional to 32,491.80, 48,737.70 and 7,867.80 is: 11,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,491.80 : 48,737.70 = 7,867.80 : x
  2. Step 2: Convert to fraction form
    32,491.80/48,737.70 = 7,867.80/x
  3. Step 3: Cross multiply
    32,491.80x = 48,737.70 × 7,867.80
  4. Step 4: Simplify right side
    32,491.80x = 383,458,476.06
  5. Step 5: Solve for x
    x = 383,458,476.06/32,491.80
  6. Step 6: Final answer
    x = 11,801.70

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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.