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Finding the Fourth Proportional to 52,062.84, 78,093.58 and 12,620.30

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Solution

The fourth proportional to 52,062.84, 78,093.58 and 12,620.30 is: 18,930.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,062.84 : 78,093.58 = 12,620.30 : x
  2. Step 2: Convert to fraction form
    52,062.84/78,093.58 = 12,620.30/x
  3. Step 3: Cross multiply
    52,062.84x = 78,093.58 × 12,620.30
  4. Step 4: Simplify right side
    52,062.84x = 985,564,407.67
  5. Step 5: Solve for x
    x = 985,564,407.67/52,062.84
  6. Step 6: Final answer
    x = 18,930.29

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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.