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Finding the Fourth Proportional to 17,923.50, 26,894.97 and 8,689.50

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Solution

The fourth proportional to 17,923.50, 26,894.97 and 8,689.50 is: 13,038.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,923.50 : 26,894.97 = 8,689.50 : x
  2. Step 2: Convert to fraction form
    17,923.50/26,894.97 = 8,689.50/x
  3. Step 3: Cross multiply
    17,923.50x = 26,894.97 × 8,689.50
  4. Step 4: Simplify right side
    17,923.50x = 233,703,841.82
  5. Step 5: Solve for x
    x = 233,703,841.82/17,923.50
  6. Step 6: Final answer
    x = 13,038.96

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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.