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Finding the Fourth Proportional to 58,707.66, 81,016.59 and 31,850.16

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Solution

The fourth proportional to 58,707.66, 81,016.59 and 31,850.16 is: 43,953.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,707.66 : 81,016.59 = 31,850.16 : x
  2. Step 2: Convert to fraction form
    58,707.66/81,016.59 = 31,850.16/x
  3. Step 3: Cross multiply
    58,707.66x = 81,016.59 × 31,850.16
  4. Step 4: Simplify right side
    58,707.66x = 2,580,390,949.07
  5. Step 5: Solve for x
    x = 2,580,390,949.07/58,707.66
  6. Step 6: Final answer
    x = 43,953.23

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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.