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Finding the Fourth Proportional to 60,662.80, 83,994.60 and 55,997.20

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Solution

The fourth proportional to 60,662.80, 83,994.60 and 55,997.20 is: 77,534.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,662.80 : 83,994.60 = 55,997.20 : x
  2. Step 2: Convert to fraction form
    60,662.80/83,994.60 = 55,997.20/x
  3. Step 3: Cross multiply
    60,662.80x = 83,994.60 × 55,997.20
  4. Step 4: Simplify right side
    60,662.80x = 4,703,462,415.12
  5. Step 5: Solve for x
    x = 4,703,462,415.12/60,662.80
  6. Step 6: Final answer
    x = 77,534.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.