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Finding the Fourth Proportional to 22,719.70, 34,064.96 and 14,919.40

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Solution

The fourth proportional to 22,719.70, 34,064.96 and 14,919.40 is: 22,369.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.70 : 34,064.96 = 14,919.40 : x
  2. Step 2: Convert to fraction form
    22,719.70/34,064.96 = 14,919.40/x
  3. Step 3: Cross multiply
    22,719.70x = 34,064.96 × 14,919.40
  4. Step 4: Simplify right side
    22,719.70x = 508,228,593.90
  5. Step 5: Solve for x
    x = 508,228,593.90/22,719.70
  6. Step 6: Final answer
    x = 22,369.52

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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.