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Finding the Fourth Proportional to 22,310.84, 30,793.06 and 13,356.50

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Solution

The fourth proportional to 22,310.84, 30,793.06 and 13,356.50 is: 18,434.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,310.84 : 30,793.06 = 13,356.50 : x
  2. Step 2: Convert to fraction form
    22,310.84/30,793.06 = 13,356.50/x
  3. Step 3: Cross multiply
    22,310.84x = 30,793.06 × 13,356.50
  4. Step 4: Simplify right side
    22,310.84x = 411,287,368.62
  5. Step 5: Solve for x
    x = 411,287,368.62/22,310.84
  6. Step 6: Final answer
    x = 18,434.42

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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.