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Finding the Fourth Proportional to 17,376.70, 23,978.64 and 9,823.40

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Solution

The fourth proportional to 17,376.70, 23,978.64 and 9,823.40 is: 13,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.70 : 23,978.64 = 9,823.40 : x
  2. Step 2: Convert to fraction form
    17,376.70/23,978.64 = 9,823.40/x
  3. Step 3: Cross multiply
    17,376.70x = 23,978.64 × 9,823.40
  4. Step 4: Simplify right side
    17,376.70x = 235,551,772.18
  5. Step 5: Solve for x
    x = 235,551,772.18/17,376.70
  6. Step 6: Final answer
    x = 13,555.61

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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.