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Finding the Fourth Proportional to 63,057.80, 94,538.70 and 31,915.40

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Solution

The fourth proportional to 63,057.80, 94,538.70 and 31,915.40 is: 47,848.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,057.80 : 94,538.70 = 31,915.40 : x
  2. Step 2: Convert to fraction form
    63,057.80/94,538.70 = 31,915.40/x
  3. Step 3: Cross multiply
    63,057.80x = 94,538.70 × 31,915.40
  4. Step 4: Simplify right side
    63,057.80x = 3,017,240,425.98
  5. Step 5: Solve for x
    x = 3,017,240,425.98/63,057.80
  6. Step 6: Final answer
    x = 47,848.81

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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.