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Finding the Fourth Proportional to 45,861.40, 68,767.80 and 16,280.20

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Solution

The fourth proportional to 45,861.40, 68,767.80 and 16,280.20 is: 24,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,861.40 : 68,767.80 = 16,280.20 : x
  2. Step 2: Convert to fraction form
    45,861.40/68,767.80 = 16,280.20/x
  3. Step 3: Cross multiply
    45,861.40x = 68,767.80 × 16,280.20
  4. Step 4: Simplify right side
    45,861.40x = 1,119,553,537.56
  5. Step 5: Solve for x
    x = 1,119,553,537.56/45,861.40
  6. Step 6: Final answer
    x = 24,411.67

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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.