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Finding the Fourth Proportional to 63,015.40, 94,328.70 and 36,641.80

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Solution

The fourth proportional to 63,015.40, 94,328.70 and 36,641.80 is: 54,849.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,015.40 : 94,328.70 = 36,641.80 : x
  2. Step 2: Convert to fraction form
    63,015.40/94,328.70 = 36,641.80/x
  3. Step 3: Cross multiply
    63,015.40x = 94,328.70 × 36,641.80
  4. Step 4: Simplify right side
    63,015.40x = 3,456,373,359.66
  5. Step 5: Solve for x
    x = 3,456,373,359.66/63,015.40
  6. Step 6: Final answer
    x = 54,849.66

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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.