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Finding the Fourth Proportional to 58,881.76, 81,263.66 and 33,047.42

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Solution

The fourth proportional to 58,881.76, 81,263.66 and 33,047.42 is: 45,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,881.76 : 81,263.66 = 33,047.42 : x
  2. Step 2: Convert to fraction form
    58,881.76/81,263.66 = 33,047.42/x
  3. Step 3: Cross multiply
    58,881.76x = 81,263.66 × 33,047.42
  4. Step 4: Simplify right side
    58,881.76x = 2,685,553,731.20
  5. Step 5: Solve for x
    x = 2,685,553,731.20/58,881.76
  6. Step 6: Final answer
    x = 45,609.27

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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.