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Finding the Fourth Proportional to 52,674.99, 72,715.87 and 31,157.95

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Solution

The fourth proportional to 52,674.99, 72,715.87 and 31,157.95 is: 43,012.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,674.99 : 72,715.87 = 31,157.95 : x
  2. Step 2: Convert to fraction form
    52,674.99/72,715.87 = 31,157.95/x
  3. Step 3: Cross multiply
    52,674.99x = 72,715.87 × 31,157.95
  4. Step 4: Simplify right side
    52,674.99x = 2,265,677,441.67
  5. Step 5: Solve for x
    x = 2,265,677,441.67/52,674.99
  6. Step 6: Final answer
    x = 43,012.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.