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Finding the Fourth Proportional to 45,773.46, 68,689.08 and 19,478.16

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Solution

The fourth proportional to 45,773.46, 68,689.08 and 19,478.16 is: 29,229.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,773.46 : 68,689.08 = 19,478.16 : x
  2. Step 2: Convert to fraction form
    45,773.46/68,689.08 = 19,478.16/x
  3. Step 3: Cross multiply
    45,773.46x = 68,689.08 × 19,478.16
  4. Step 4: Simplify right side
    45,773.46x = 1,337,936,890.49
  5. Step 5: Solve for x
    x = 1,337,936,890.49/45,773.46
  6. Step 6: Final answer
    x = 29,229.53

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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.