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Finding the Fourth Proportional to 33,156.70, 45,760.20 and 19,009.50

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Solution

The fourth proportional to 33,156.70, 45,760.20 and 19,009.50 is: 26,235.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,156.70 : 45,760.20 = 19,009.50 : x
  2. Step 2: Convert to fraction form
    33,156.70/45,760.20 = 19,009.50/x
  3. Step 3: Cross multiply
    33,156.70x = 45,760.20 × 19,009.50
  4. Step 4: Simplify right side
    33,156.70x = 869,878,521.90
  5. Step 5: Solve for x
    x = 869,878,521.90/33,156.70
  6. Step 6: Final answer
    x = 26,235.38

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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.