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Finding the Fourth Proportional to 22,073.76, 30,461.78 and 12,137.76

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Solution

The fourth proportional to 22,073.76, 30,461.78 and 12,137.76 is: 16,750.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,073.76 : 30,461.78 = 12,137.76 : x
  2. Step 2: Convert to fraction form
    22,073.76/30,461.78 = 12,137.76/x
  3. Step 3: Cross multiply
    22,073.76x = 30,461.78 × 12,137.76
  4. Step 4: Simplify right side
    22,073.76x = 369,737,774.81
  5. Step 5: Solve for x
    x = 369,737,774.81/22,073.76
  6. Step 6: Final answer
    x = 16,750.10

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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.