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Finding the Fourth Proportional to 22,458.40, 33,687.60 and 14,585.20

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Solution

The fourth proportional to 22,458.40, 33,687.60 and 14,585.20 is: 21,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,458.40 : 33,687.60 = 14,585.20 : x
  2. Step 2: Convert to fraction form
    22,458.40/33,687.60 = 14,585.20/x
  3. Step 3: Cross multiply
    22,458.40x = 33,687.60 × 14,585.20
  4. Step 4: Simplify right side
    22,458.40x = 491,340,383.52
  5. Step 5: Solve for x
    x = 491,340,383.52/22,458.40
  6. Step 6: Final answer
    x = 21,877.80

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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.