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Finding the Fourth Proportional to 29,276.70, 43,883.57 and 12,644.57

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Solution

The fourth proportional to 29,276.70, 43,883.57 and 12,644.57 is: 18,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,276.70 : 43,883.57 = 12,644.57 : x
  2. Step 2: Convert to fraction form
    29,276.70/43,883.57 = 12,644.57/x
  3. Step 3: Cross multiply
    29,276.70x = 43,883.57 × 12,644.57
  4. Step 4: Simplify right side
    29,276.70x = 554,888,590.07
  5. Step 5: Solve for x
    x = 554,888,590.07/29,276.70
  6. Step 6: Final answer
    x = 18,953.25

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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.