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Finding the Fourth Proportional to 33,188.79, 45,787.51 and 21,864.22

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Solution

The fourth proportional to 33,188.79, 45,787.51 and 21,864.22 is: 30,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,188.79 : 45,787.51 = 21,864.22 : x
  2. Step 2: Convert to fraction form
    33,188.79/45,787.51 = 21,864.22/x
  3. Step 3: Cross multiply
    33,188.79x = 45,787.51 × 21,864.22
  4. Step 4: Simplify right side
    33,188.79x = 1,001,108,191.89
  5. Step 5: Solve for x
    x = 1,001,108,191.89/33,188.79
  6. Step 6: Final answer
    x = 30,164.05

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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.