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Finding the Fourth Proportional to 14,810.40, 22,161.60 and 10,922.40

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Solution

The fourth proportional to 14,810.40, 22,161.60 and 10,922.40 is: 16,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,810.40 : 22,161.60 = 10,922.40 : x
  2. Step 2: Convert to fraction form
    14,810.40/22,161.60 = 10,922.40/x
  3. Step 3: Cross multiply
    14,810.40x = 22,161.60 × 10,922.40
  4. Step 4: Simplify right side
    14,810.40x = 242,057,859.84
  5. Step 5: Solve for x
    x = 242,057,859.84/14,810.40
  6. Step 6: Final answer
    x = 16,343.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.