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Finding the Fourth Proportional to 28,885.60, 43,360.80 and 22,340.80

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Solution

The fourth proportional to 28,885.60, 43,360.80 and 22,340.80 is: 33,536.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885.60 : 43,360.80 = 22,340.80 : x
  2. Step 2: Convert to fraction form
    28,885.60/43,360.80 = 22,340.80/x
  3. Step 3: Cross multiply
    28,885.60x = 43,360.80 × 22,340.80
  4. Step 4: Simplify right side
    28,885.60x = 968,714,960.64
  5. Step 5: Solve for x
    x = 968,714,960.64/28,885.60
  6. Step 6: Final answer
    x = 33,536.26

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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.