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Finding the Fourth Proportional to 62,774.63, 86,629.60 and 34,480.32

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Solution

The fourth proportional to 62,774.63, 86,629.60 and 34,480.32 is: 47,583.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,774.63 : 86,629.60 = 34,480.32 : x
  2. Step 2: Convert to fraction form
    62,774.63/86,629.60 = 34,480.32/x
  3. Step 3: Cross multiply
    62,774.63x = 86,629.60 × 34,480.32
  4. Step 4: Simplify right side
    62,774.63x = 2,987,016,047.71
  5. Step 5: Solve for x
    x = 2,987,016,047.71/62,774.63
  6. Step 6: Final answer
    x = 47,583.17

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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.