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Finding the Fourth Proportional to 58,751.60, 81,078.93 and 31,895.82

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Solution

The fourth proportional to 58,751.60, 81,078.93 and 31,895.82 is: 44,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,751.60 : 81,078.93 = 31,895.82 : x
  2. Step 2: Convert to fraction form
    58,751.60/81,078.93 = 31,895.82/x
  3. Step 3: Cross multiply
    58,751.60x = 81,078.93 × 31,895.82
  4. Step 4: Simplify right side
    58,751.60x = 2,586,078,957.07
  5. Step 5: Solve for x
    x = 2,586,078,957.07/58,751.60
  6. Step 6: Final answer
    x = 44,017.17

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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.