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Finding the Fourth Proportional to 33,135.77, 45,721.14 and 19,710.29

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Solution

The fourth proportional to 33,135.77, 45,721.14 and 19,710.29 is: 27,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,135.77 : 45,721.14 = 19,710.29 : x
  2. Step 2: Convert to fraction form
    33,135.77/45,721.14 = 19,710.29/x
  3. Step 3: Cross multiply
    33,135.77x = 45,721.14 × 19,710.29
  4. Step 4: Simplify right side
    33,135.77x = 901,176,928.53
  5. Step 5: Solve for x
    x = 901,176,928.53/33,135.77
  6. Step 6: Final answer
    x = 27,196.50

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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.