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Finding the Fourth Proportional to 19,122.71, 26,378.71 and 17,769.62

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Solution

The fourth proportional to 19,122.71, 26,378.71 and 17,769.62 is: 24,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.71 : 26,378.71 = 17,769.62 : x
  2. Step 2: Convert to fraction form
    19,122.71/26,378.71 = 17,769.62/x
  3. Step 3: Cross multiply
    19,122.71x = 26,378.71 × 17,769.62
  4. Step 4: Simplify right side
    19,122.71x = 468,739,652.79
  5. Step 5: Solve for x
    x = 468,739,652.79/19,122.71
  6. Step 6: Final answer
    x = 24,512.20

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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.