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Finding the Fourth Proportional to 53,820.90, 80,702.55 and 22,620.90

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Solution

The fourth proportional to 53,820.90, 80,702.55 and 22,620.90 is: 33,919.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,820.90 : 80,702.55 = 22,620.90 : x
  2. Step 2: Convert to fraction form
    53,820.90/80,702.55 = 22,620.90/x
  3. Step 3: Cross multiply
    53,820.90x = 80,702.55 × 22,620.90
  4. Step 4: Simplify right side
    53,820.90x = 1,825,564,313.30
  5. Step 5: Solve for x
    x = 1,825,564,313.30/53,820.90
  6. Step 6: Final answer
    x = 33,919.25

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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.