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Finding the Fourth Proportional to 17,376.64, 23,978.32 and 9,823.64

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Solution

The fourth proportional to 17,376.64, 23,978.32 and 9,823.64 is: 13,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.64 : 23,978.32 = 9,823.64 : x
  2. Step 2: Convert to fraction form
    17,376.64/23,978.32 = 9,823.64/x
  3. Step 3: Cross multiply
    17,376.64x = 23,978.32 × 9,823.64
  4. Step 4: Simplify right side
    17,376.64x = 235,554,383.48
  5. Step 5: Solve for x
    x = 235,554,383.48/17,376.64
  6. Step 6: Final answer
    x = 13,555.81

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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.