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Finding the Fourth Proportional to 69,591.69, 95,977.31 and 48,421.53

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Solution

The fourth proportional to 69,591.69, 95,977.31 and 48,421.53 is: 66,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,591.69 : 95,977.31 = 48,421.53 : x
  2. Step 2: Convert to fraction form
    69,591.69/95,977.31 = 48,421.53/x
  3. Step 3: Cross multiply
    69,591.69x = 95,977.31 × 48,421.53
  4. Step 4: Simplify right side
    69,591.69x = 4,647,367,953.38
  5. Step 5: Solve for x
    x = 4,647,367,953.38/69,591.69
  6. Step 6: Final answer
    x = 66,780.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.