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Finding the Fourth Proportional to 62,578.92, 93,878.61 and 20,446.77

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Solution

The fourth proportional to 62,578.92, 93,878.61 and 20,446.77 is: 30,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,578.92 : 93,878.61 = 20,446.77 : x
  2. Step 2: Convert to fraction form
    62,578.92/93,878.61 = 20,446.77/x
  3. Step 3: Cross multiply
    62,578.92x = 93,878.61 × 20,446.77
  4. Step 4: Simplify right side
    62,578.92x = 1,919,514,346.59
  5. Step 5: Solve for x
    x = 1,919,514,346.59/62,578.92
  6. Step 6: Final answer
    x = 30,673.50

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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.