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Finding the Fourth Proportional to 60,885.96, 91,287.62 and 21,437.88

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Solution

The fourth proportional to 60,885.96, 91,287.62 and 21,437.88 is: 32,142.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,885.96 : 91,287.62 = 21,437.88 : x
  2. Step 2: Convert to fraction form
    60,885.96/91,287.62 = 21,437.88/x
  3. Step 3: Cross multiply
    60,885.96x = 91,287.62 × 21,437.88
  4. Step 4: Simplify right side
    60,885.96x = 1,957,013,043.05
  5. Step 5: Solve for x
    x = 1,957,013,043.05/60,885.96
  6. Step 6: Final answer
    x = 32,142.27

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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.