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Finding the Fourth Proportional to 22,404.13, 30,916.49 and 12,330.63

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Solution

The fourth proportional to 22,404.13, 30,916.49 and 12,330.63 is: 17,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,404.13 : 30,916.49 = 12,330.63 : x
  2. Step 2: Convert to fraction form
    22,404.13/30,916.49 = 12,330.63/x
  3. Step 3: Cross multiply
    22,404.13x = 30,916.49 × 12,330.63
  4. Step 4: Simplify right side
    22,404.13x = 381,219,737.44
  5. Step 5: Solve for x
    x = 381,219,737.44/22,404.13
  6. Step 6: Final answer
    x = 17,015.60

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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.