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Finding the Fourth Proportional to 46,855.62, 70,275.60 and 20,553.30

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Solution

The fourth proportional to 46,855.62, 70,275.60 and 20,553.30 is: 30,826.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,855.62 : 70,275.60 = 20,553.30 : x
  2. Step 2: Convert to fraction form
    46,855.62/70,275.60 = 20,553.30/x
  3. Step 3: Cross multiply
    46,855.62x = 70,275.60 × 20,553.30
  4. Step 4: Simplify right side
    46,855.62x = 1,444,395,489.48
  5. Step 5: Solve for x
    x = 1,444,395,489.48/46,855.62
  6. Step 6: Final answer
    x = 30,826.52

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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.