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Finding the Fourth Proportional to 22,651.70, 31,259.73 and 12,581.07

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Solution

The fourth proportional to 22,651.70, 31,259.73 and 12,581.07 is: 17,362.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,651.70 : 31,259.73 = 12,581.07 : x
  2. Step 2: Convert to fraction form
    22,651.70/31,259.73 = 12,581.07/x
  3. Step 3: Cross multiply
    22,651.70x = 31,259.73 × 12,581.07
  4. Step 4: Simplify right side
    22,651.70x = 393,280,781.27
  5. Step 5: Solve for x
    x = 393,280,781.27/22,651.70
  6. Step 6: Final answer
    x = 17,362.09

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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.