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Finding the Fourth Proportional to 36,591.84, 50,498.88 and 20,678.40

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Solution

The fourth proportional to 36,591.84, 50,498.88 and 20,678.40 is: 28,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,591.84 : 50,498.88 = 20,678.40 : x
  2. Step 2: Convert to fraction form
    36,591.84/50,498.88 = 20,678.40/x
  3. Step 3: Cross multiply
    36,591.84x = 50,498.88 × 20,678.40
  4. Step 4: Simplify right side
    36,591.84x = 1,044,236,040.19
  5. Step 5: Solve for x
    x = 1,044,236,040.19/36,591.84
  6. Step 6: Final answer
    x = 28,537.40

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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.