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Finding the Fourth Proportional to 49,480.80, 74,221.20 and 46,564.80

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Solution

The fourth proportional to 49,480.80, 74,221.20 and 46,564.80 is: 69,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,480.80 : 74,221.20 = 46,564.80 : x
  2. Step 2: Convert to fraction form
    49,480.80/74,221.20 = 46,564.80/x
  3. Step 3: Cross multiply
    49,480.80x = 74,221.20 × 46,564.80
  4. Step 4: Simplify right side
    49,480.80x = 3,456,095,333.76
  5. Step 5: Solve for x
    x = 3,456,095,333.76/49,480.80
  6. Step 6: Final answer
    x = 69,847.20

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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.