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Finding the Fourth Proportional to 82,800.69, 114,011.91 and 62,412.39

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Solution

The fourth proportional to 82,800.69, 114,011.91 and 62,412.39 is: 85,938.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,800.69 : 114,011.91 = 62,412.39 : x
  2. Step 2: Convert to fraction form
    82,800.69/114,011.91 = 62,412.39/x
  3. Step 3: Cross multiply
    82,800.69x = 114,011.91 × 62,412.39
  4. Step 4: Simplify right side
    82,800.69x = 7,115,755,791.56
  5. Step 5: Solve for x
    x = 7,115,755,791.56/82,800.69
  6. Step 6: Final answer
    x = 85,938.36

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1.5x scale

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.