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Finding the Fourth Proportional to 22,373.70, 30,875.82 and 12,302.79

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Solution

The fourth proportional to 22,373.70, 30,875.82 and 12,302.79 is: 16,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,373.70 : 30,875.82 = 12,302.79 : x
  2. Step 2: Convert to fraction form
    22,373.70/30,875.82 = 12,302.79/x
  3. Step 3: Cross multiply
    22,373.70x = 30,875.82 × 12,302.79
  4. Step 4: Simplify right side
    22,373.70x = 379,858,752.75
  5. Step 5: Solve for x
    x = 379,858,752.75/22,373.70
  6. Step 6: Final answer
    x = 16,977.91

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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.