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Finding the Fourth Proportional to 54,812.70, 75,641.76 and 29,662.20

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Solution

The fourth proportional to 54,812.70, 75,641.76 and 29,662.20 is: 40,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,812.70 : 75,641.76 = 29,662.20 : x
  2. Step 2: Convert to fraction form
    54,812.70/75,641.76 = 29,662.20/x
  3. Step 3: Cross multiply
    54,812.70x = 75,641.76 × 29,662.20
  4. Step 4: Simplify right side
    54,812.70x = 2,243,701,013.47
  5. Step 5: Solve for x
    x = 2,243,701,013.47/54,812.70
  6. Step 6: Final answer
    x = 40,933.96

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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.