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Finding the Fourth Proportional to 17,924.50, 26,886.78 and 6,980.50

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Solution

The fourth proportional to 17,924.50, 26,886.78 and 6,980.50 is: 10,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,924.50 : 26,886.78 = 6,980.50 : x
  2. Step 2: Convert to fraction form
    17,924.50/26,886.78 = 6,980.50/x
  3. Step 3: Cross multiply
    17,924.50x = 26,886.78 × 6,980.50
  4. Step 4: Simplify right side
    17,924.50x = 187,683,167.79
  5. Step 5: Solve for x
    x = 187,683,167.79/17,924.50
  6. Step 6: Final answer
    x = 10,470.76

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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.