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Finding the Fourth Proportional to 50,475.88, 75,713.82 and 31,969

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Solution

The fourth proportional to 50,475.88, 75,713.82 and 31,969 is: 47,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,475.88 : 75,713.82 = 31,969 : x
  2. Step 2: Convert to fraction form
    50,475.88/75,713.82 = 31,969/x
  3. Step 3: Cross multiply
    50,475.88x = 75,713.82 × 31,969
  4. Step 4: Simplify right side
    50,475.88x = 2,420,495,111.58
  5. Step 5: Solve for x
    x = 2,420,495,111.58/50,475.88
  6. Step 6: Final answer
    x = 47,953.50

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1.5x scale

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.