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Finding the Fourth Proportional to 36,878.91, 50,892.93 and 20,962.95

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Solution

The fourth proportional to 36,878.91, 50,892.93 and 20,962.95 is: 28,928.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,878.91 : 50,892.93 = 20,962.95 : x
  2. Step 2: Convert to fraction form
    36,878.91/50,892.93 = 20,962.95/x
  3. Step 3: Cross multiply
    36,878.91x = 50,892.93 × 20,962.95
  4. Step 4: Simplify right side
    36,878.91x = 1,066,865,946.94
  5. Step 5: Solve for x
    x = 1,066,865,946.94/36,878.91
  6. Step 6: Final answer
    x = 28,928.89

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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.