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Finding the Fourth Proportional to 61,901.81, 85,423.65 and 35,043.62

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Solution

The fourth proportional to 61,901.81, 85,423.65 and 35,043.62 is: 48,359.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,901.81 : 85,423.65 = 35,043.62 : x
  2. Step 2: Convert to fraction form
    61,901.81/85,423.65 = 35,043.62/x
  3. Step 3: Cross multiply
    61,901.81x = 85,423.65 × 35,043.62
  4. Step 4: Simplify right side
    61,901.81x = 2,993,553,502.49
  5. Step 5: Solve for x
    x = 2,993,553,502.49/61,901.81
  6. Step 6: Final answer
    x = 48,359.71

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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.