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Finding the Fourth Proportional to 58,881.96, 81,255.36 and 33,390.65

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Solution

The fourth proportional to 58,881.96, 81,255.36 and 33,390.65 is: 46,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,881.96 : 81,255.36 = 33,390.65 : x
  2. Step 2: Convert to fraction form
    58,881.96/81,255.36 = 33,390.65/x
  3. Step 3: Cross multiply
    58,881.96x = 81,255.36 × 33,390.65
  4. Step 4: Simplify right side
    58,881.96x = 2,713,168,880.11
  5. Step 5: Solve for x
    x = 2,713,168,880.11/58,881.96
  6. Step 6: Final answer
    x = 46,078.10

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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.