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Finding the Fourth Proportional to 17,293.20, 25,939.80 and 5,607.60

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Solution

The fourth proportional to 17,293.20, 25,939.80 and 5,607.60 is: 8,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,293.20 : 25,939.80 = 5,607.60 : x
  2. Step 2: Convert to fraction form
    17,293.20/25,939.80 = 5,607.60/x
  3. Step 3: Cross multiply
    17,293.20x = 25,939.80 × 5,607.60
  4. Step 4: Simplify right side
    17,293.20x = 145,460,022.48
  5. Step 5: Solve for x
    x = 145,460,022.48/17,293.20
  6. Step 6: Final answer
    x = 8,411.40

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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.