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Finding the Fourth Proportional to 52,062.59, 78,093.62 and 12,619.70

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Solution

The fourth proportional to 52,062.59, 78,093.62 and 12,619.70 is: 18,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,062.59 : 78,093.62 = 12,619.70 : x
  2. Step 2: Convert to fraction form
    52,062.59/78,093.62 = 12,619.70/x
  3. Step 3: Cross multiply
    52,062.59x = 78,093.62 × 12,619.70
  4. Step 4: Simplify right side
    52,062.59x = 985,518,136.67
  5. Step 5: Solve for x
    x = 985,518,136.67/52,062.59
  6. Step 6: Final answer
    x = 18,929.49

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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.