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Finding the Fourth Proportional to 40,576.60, 60,864.90 and 39,021.40

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Solution

The fourth proportional to 40,576.60, 60,864.90 and 39,021.40 is: 58,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,576.60 : 60,864.90 = 39,021.40 : x
  2. Step 2: Convert to fraction form
    40,576.60/60,864.90 = 39,021.40/x
  3. Step 3: Cross multiply
    40,576.60x = 60,864.90 × 39,021.40
  4. Step 4: Simplify right side
    40,576.60x = 2,375,033,608.86
  5. Step 5: Solve for x
    x = 2,375,033,608.86/40,576.60
  6. Step 6: Final answer
    x = 58,532.10

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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.