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Finding the Fourth Proportional to 61,243.77, 84,513.54 and 34,021.62

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Solution

The fourth proportional to 61,243.77, 84,513.54 and 34,021.62 is: 46,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,243.77 : 84,513.54 = 34,021.62 : x
  2. Step 2: Convert to fraction form
    61,243.77/84,513.54 = 34,021.62/x
  3. Step 3: Cross multiply
    61,243.77x = 84,513.54 × 34,021.62
  4. Step 4: Simplify right side
    61,243.77x = 2,875,287,542.73
  5. Step 5: Solve for x
    x = 2,875,287,542.73/61,243.77
  6. Step 6: Final answer
    x = 46,948.25

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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.