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Finding the Fourth Proportional to 34,165.20, 51,260.60 and 13,403.60

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Solution

The fourth proportional to 34,165.20, 51,260.60 and 13,403.60 is: 20,110.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,165.20 : 51,260.60 = 13,403.60 : x
  2. Step 2: Convert to fraction form
    34,165.20/51,260.60 = 13,403.60/x
  3. Step 3: Cross multiply
    34,165.20x = 51,260.60 × 13,403.60
  4. Step 4: Simplify right side
    34,165.20x = 687,076,578.16
  5. Step 5: Solve for x
    x = 687,076,578.16/34,165.20
  6. Step 6: Final answer
    x = 20,110.42

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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.