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Finding the Fourth Proportional to 58,776.80, 81,112.95 and 33,282.49

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Solution

The fourth proportional to 58,776.80, 81,112.95 and 33,282.49 is: 45,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,776.80 : 81,112.95 = 33,282.49 : x
  2. Step 2: Convert to fraction form
    58,776.80/81,112.95 = 33,282.49/x
  3. Step 3: Cross multiply
    58,776.80x = 81,112.95 × 33,282.49
  4. Step 4: Simplify right side
    58,776.80x = 2,699,640,947.25
  5. Step 5: Solve for x
    x = 2,699,640,947.25/58,776.80
  6. Step 6: Final answer
    x = 45,930.38

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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.