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Finding the Fourth Proportional to 17,317.16, 25,978.80 and 5,628.32

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Solution

The fourth proportional to 17,317.16, 25,978.80 and 5,628.32 is: 8,443.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,317.16 : 25,978.80 = 5,628.32 : x
  2. Step 2: Convert to fraction form
    17,317.16/25,978.80 = 5,628.32/x
  3. Step 3: Cross multiply
    17,317.16x = 25,978.80 × 5,628.32
  4. Step 4: Simplify right side
    17,317.16x = 146,216,999.62
  5. Step 5: Solve for x
    x = 146,216,999.62/17,317.16
  6. Step 6: Final answer
    x = 8,443.47

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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.