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Finding the Fourth Proportional to 45,663.66, 62,940.56 and 30,550.91

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Solution

The fourth proportional to 45,663.66, 62,940.56 and 30,550.91 is: 42,109.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,663.66 : 62,940.56 = 30,550.91 : x
  2. Step 2: Convert to fraction form
    45,663.66/62,940.56 = 30,550.91/x
  3. Step 3: Cross multiply
    45,663.66x = 62,940.56 × 30,550.91
  4. Step 4: Simplify right side
    45,663.66x = 1,922,890,916.45
  5. Step 5: Solve for x
    x = 1,922,890,916.45/45,663.66
  6. Step 6: Final answer
    x = 42,109.87

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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.