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Finding the Fourth Proportional to 56,354.98, 84,532.50 and 45,812.44

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Solution

The fourth proportional to 56,354.98, 84,532.50 and 45,812.44 is: 68,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,354.98 : 84,532.50 = 45,812.44 : x
  2. Step 2: Convert to fraction form
    56,354.98/84,532.50 = 45,812.44/x
  3. Step 3: Cross multiply
    56,354.98x = 84,532.50 × 45,812.44
  4. Step 4: Simplify right side
    56,354.98x = 3,872,640,084.30
  5. Step 5: Solve for x
    x = 3,872,640,084.30/56,354.98
  6. Step 6: Final answer
    x = 68,718.68

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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.