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Finding the Fourth Proportional to 63,072.59, 94,631.66 and 31,480.16

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Solution

The fourth proportional to 63,072.59, 94,631.66 and 31,480.16 is: 47,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,072.59 : 94,631.66 = 31,480.16 : x
  2. Step 2: Convert to fraction form
    63,072.59/94,631.66 = 31,480.16/x
  3. Step 3: Cross multiply
    63,072.59x = 94,631.66 × 31,480.16
  4. Step 4: Simplify right side
    63,072.59x = 2,979,019,167.31
  5. Step 5: Solve for x
    x = 2,979,019,167.31/63,072.59
  6. Step 6: Final answer
    x = 47,231.60

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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.