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Finding the Fourth Proportional to 62,850.71, 86,730.77 and 34,550.93

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Solution

The fourth proportional to 62,850.71, 86,730.77 and 34,550.93 is: 47,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,850.71 : 86,730.77 = 34,550.93 : x
  2. Step 2: Convert to fraction form
    62,850.71/86,730.77 = 34,550.93/x
  3. Step 3: Cross multiply
    62,850.71x = 86,730.77 × 34,550.93
  4. Step 4: Simplify right side
    62,850.71x = 2,996,628,459.91
  5. Step 5: Solve for x
    x = 2,996,628,459.91/62,850.71
  6. Step 6: Final answer
    x = 47,678.52

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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.