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Finding the Fourth Proportional to 71,709.45, 107,597.97 and 34,280.92

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Solution

The fourth proportional to 71,709.45, 107,597.97 and 34,280.92 is: 51,437.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,709.45 : 107,597.97 = 34,280.92 : x
  2. Step 2: Convert to fraction form
    71,709.45/107,597.97 = 34,280.92/x
  3. Step 3: Cross multiply
    71,709.45x = 107,597.97 × 34,280.92
  4. Step 4: Simplify right side
    71,709.45x = 3,688,557,536.23
  5. Step 5: Solve for x
    x = 3,688,557,536.23/71,709.45
  6. Step 6: Final answer
    x = 51,437.54

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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.