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Finding the Fourth Proportional to 60,995.70, 91,493.55 and 21,556.80

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Solution

The fourth proportional to 60,995.70, 91,493.55 and 21,556.80 is: 32,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,995.70 : 91,493.55 = 21,556.80 : x
  2. Step 2: Convert to fraction form
    60,995.70/91,493.55 = 21,556.80/x
  3. Step 3: Cross multiply
    60,995.70x = 91,493.55 × 21,556.80
  4. Step 4: Simplify right side
    60,995.70x = 1,972,308,158.64
  5. Step 5: Solve for x
    x = 1,972,308,158.64/60,995.70
  6. Step 6: Final answer
    x = 32,335.20

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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.