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Finding the Fourth Proportional to 49,967.62, 68,957.99 and 28,750.12

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Solution

The fourth proportional to 49,967.62, 68,957.99 and 28,750.12 is: 39,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,967.62 : 68,957.99 = 28,750.12 : x
  2. Step 2: Convert to fraction form
    49,967.62/68,957.99 = 28,750.12/x
  3. Step 3: Cross multiply
    49,967.62x = 68,957.99 × 28,750.12
  4. Step 4: Simplify right side
    49,967.62x = 1,982,550,343.71
  5. Step 5: Solve for x
    x = 1,982,550,343.71/49,967.62
  6. Step 6: Final answer
    x = 39,676.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.