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Finding the Fourth Proportional to 67,602.76, 93,299.92 and 39,308.45

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Solution

The fourth proportional to 67,602.76, 93,299.92 and 39,308.45 is: 54,250.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,602.76 : 93,299.92 = 39,308.45 : x
  2. Step 2: Convert to fraction form
    67,602.76/93,299.92 = 39,308.45/x
  3. Step 3: Cross multiply
    67,602.76x = 93,299.92 × 39,308.45
  4. Step 4: Simplify right side
    67,602.76x = 3,667,474,675.55
  5. Step 5: Solve for x
    x = 3,667,474,675.55/67,602.76
  6. Step 6: Final answer
    x = 54,250.37

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1.5x scale

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.