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Finding the Fourth Proportional to 45,639.51, 62,978.00 and 25,495.96

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Solution

The fourth proportional to 45,639.51, 62,978.00 and 25,495.96 is: 35,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,639.51 : 62,978.00 = 25,495.96 : x
  2. Step 2: Convert to fraction form
    45,639.51/62,978.00 = 25,495.96/x
  3. Step 3: Cross multiply
    45,639.51x = 62,978.00 × 25,495.96
  4. Step 4: Simplify right side
    45,639.51x = 1,605,684,283.96
  5. Step 5: Solve for x
    x = 1,605,684,283.96/45,639.51
  6. Step 6: Final answer
    x = 35,181.89

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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.