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Finding the Fourth Proportional to 17,689.60, 26,534.40 and 14,838.40

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Solution

The fourth proportional to 17,689.60, 26,534.40 and 14,838.40 is: 22,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,689.60 : 26,534.40 = 14,838.40 : x
  2. Step 2: Convert to fraction form
    17,689.60/26,534.40 = 14,838.40/x
  3. Step 3: Cross multiply
    17,689.60x = 26,534.40 × 14,838.40
  4. Step 4: Simplify right side
    17,689.60x = 393,728,040.96
  5. Step 5: Solve for x
    x = 393,728,040.96/17,689.60
  6. Step 6: Final answer
    x = 22,257.60

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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.