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Finding the Fourth Proportional to 46,403.92, 69,605.80 and 16,821.68

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Solution

The fourth proportional to 46,403.92, 69,605.80 and 16,821.68 is: 25,232.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,403.92 : 69,605.80 = 16,821.68 : x
  2. Step 2: Convert to fraction form
    46,403.92/69,605.80 = 16,821.68/x
  3. Step 3: Cross multiply
    46,403.92x = 69,605.80 × 16,821.68
  4. Step 4: Simplify right side
    46,403.92x = 1,170,886,493.74
  5. Step 5: Solve for x
    x = 1,170,886,493.74/46,403.92
  6. Step 6: Final answer
    x = 25,232.49

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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.