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Finding the Fourth Proportional to 61,901.40, 85,424.08 and 33,606.48

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Solution

The fourth proportional to 61,901.40, 85,424.08 and 33,606.48 is: 46,377.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,901.40 : 85,424.08 = 33,606.48 : x
  2. Step 2: Convert to fraction form
    61,901.40/85,424.08 = 33,606.48/x
  3. Step 3: Cross multiply
    61,901.40x = 85,424.08 × 33,606.48
  4. Step 4: Simplify right side
    61,901.40x = 2,870,802,636.04
  5. Step 5: Solve for x
    x = 2,870,802,636.04/61,901.40
  6. Step 6: Final answer
    x = 46,377.02

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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.