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Finding the Fourth Proportional to 29,563.56, 40,784.88 and 19,479.12

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Solution

The fourth proportional to 29,563.56, 40,784.88 and 19,479.12 is: 26,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,563.56 : 40,784.88 = 19,479.12 : x
  2. Step 2: Convert to fraction form
    29,563.56/40,784.88 = 19,479.12/x
  3. Step 3: Cross multiply
    29,563.56x = 40,784.88 × 19,479.12
  4. Step 4: Simplify right side
    29,563.56x = 794,453,571.71
  5. Step 5: Solve for x
    x = 794,453,571.71/29,563.56
  6. Step 6: Final answer
    x = 26,872.73

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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.