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Finding the Fourth Proportional to 53,246.40, 79,840.80 and 22,046.40

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Solution

The fourth proportional to 53,246.40, 79,840.80 and 22,046.40 is: 33,057.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,246.40 : 79,840.80 = 22,046.40 : x
  2. Step 2: Convert to fraction form
    53,246.40/79,840.80 = 22,046.40/x
  3. Step 3: Cross multiply
    53,246.40x = 79,840.80 × 22,046.40
  4. Step 4: Simplify right side
    53,246.40x = 1,760,202,213.12
  5. Step 5: Solve for x
    x = 1,760,202,213.12/53,246.40
  6. Step 6: Final answer
    x = 33,057.68

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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.