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Finding the Fourth Proportional to 29,175.60, 43,763.40 and 21,831.60

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Solution

The fourth proportional to 29,175.60, 43,763.40 and 21,831.60 is: 32,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,175.60 : 43,763.40 = 21,831.60 : x
  2. Step 2: Convert to fraction form
    29,175.60/43,763.40 = 21,831.60/x
  3. Step 3: Cross multiply
    29,175.60x = 43,763.40 × 21,831.60
  4. Step 4: Simplify right side
    29,175.60x = 955,425,043.44
  5. Step 5: Solve for x
    x = 955,425,043.44/29,175.60
  6. Step 6: Final answer
    x = 32,747.40

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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.