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Finding the Fourth Proportional to 17,563.59, 26,355.78 and 6,478.08

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Solution

The fourth proportional to 17,563.59, 26,355.78 and 6,478.08 is: 9,720.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,563.59 : 26,355.78 = 6,478.08 : x
  2. Step 2: Convert to fraction form
    17,563.59/26,355.78 = 6,478.08/x
  3. Step 3: Cross multiply
    17,563.59x = 26,355.78 × 6,478.08
  4. Step 4: Simplify right side
    17,563.59x = 170,734,851.30
  5. Step 5: Solve for x
    x = 170,734,851.30/17,563.59
  6. Step 6: Final answer
    x = 9,720.95

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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.