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Finding the Fourth Proportional to 22,261, 30,711.66 and 14,710.96

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Solution

The fourth proportional to 22,261, 30,711.66 and 14,710.96 is: 20,295.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261 : 30,711.66 = 14,710.96 : x
  2. Step 2: Convert to fraction form
    22,261/30,711.66 = 14,710.96/x
  3. Step 3: Cross multiply
    22,261x = 30,711.66 × 14,710.96
  4. Step 4: Simplify right side
    22,261x = 451,798,001.79
  5. Step 5: Solve for x
    x = 451,798,001.79/22,261
  6. Step 6: Final answer
    x = 20,295.49

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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.