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Finding the Fourth Proportional to 55,221.80, 82,832.70 and 52,802.60

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Solution

The fourth proportional to 55,221.80, 82,832.70 and 52,802.60 is: 79,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,221.80 : 82,832.70 = 52,802.60 : x
  2. Step 2: Convert to fraction form
    55,221.80/82,832.70 = 52,802.60/x
  3. Step 3: Cross multiply
    55,221.80x = 82,832.70 × 52,802.60
  4. Step 4: Simplify right side
    55,221.80x = 4,373,781,925.02
  5. Step 5: Solve for x
    x = 4,373,781,925.02/55,221.80
  6. Step 6: Final answer
    x = 79,203.90

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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.