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Finding the Fourth Proportional to 53,467.80, 80,201.70 and 48,802.20

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Solution

The fourth proportional to 53,467.80, 80,201.70 and 48,802.20 is: 73,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,467.80 : 80,201.70 = 48,802.20 : x
  2. Step 2: Convert to fraction form
    53,467.80/80,201.70 = 48,802.20/x
  3. Step 3: Cross multiply
    53,467.80x = 80,201.70 × 48,802.20
  4. Step 4: Simplify right side
    53,467.80x = 3,914,019,403.74
  5. Step 5: Solve for x
    x = 3,914,019,403.74/53,467.80
  6. Step 6: Final answer
    x = 73,203.30

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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.