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Finding the Fourth Proportional to 60,299.58, 90,459.82 and 20,314.74

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Solution

The fourth proportional to 60,299.58, 90,459.82 and 20,314.74 is: 30,475.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,299.58 : 90,459.82 = 20,314.74 : x
  2. Step 2: Convert to fraction form
    60,299.58/90,459.82 = 20,314.74/x
  3. Step 3: Cross multiply
    60,299.58x = 90,459.82 × 20,314.74
  4. Step 4: Simplify right side
    60,299.58x = 1,837,667,723.75
  5. Step 5: Solve for x
    x = 1,837,667,723.75/60,299.58
  6. Step 6: Final answer
    x = 30,475.63

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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.