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Finding the Fourth Proportional to 63,700.70, 95,538.90 and 19,328.90

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Solution

The fourth proportional to 63,700.70, 95,538.90 and 19,328.90 is: 28,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,700.70 : 95,538.90 = 19,328.90 : x
  2. Step 2: Convert to fraction form
    63,700.70/95,538.90 = 19,328.90/x
  3. Step 3: Cross multiply
    63,700.70x = 95,538.90 × 19,328.90
  4. Step 4: Simplify right side
    63,700.70x = 1,846,661,844.21
  5. Step 5: Solve for x
    x = 1,846,661,844.21/63,700.70
  6. Step 6: Final answer
    x = 28,989.66

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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.