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Finding the Fourth Proportional to 10,888.43, 16,334.09 and 3,490.43

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Solution

The fourth proportional to 10,888.43, 16,334.09 and 3,490.43 is: 5,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.43 : 16,334.09 = 3,490.43 : x
  2. Step 2: Convert to fraction form
    10,888.43/16,334.09 = 3,490.43/x
  3. Step 3: Cross multiply
    10,888.43x = 16,334.09 × 3,490.43
  4. Step 4: Simplify right side
    10,888.43x = 57,012,898.64
  5. Step 5: Solve for x
    x = 57,012,898.64/10,888.43
  6. Step 6: Final answer
    x = 5,236.10

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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.