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Finding the Fourth Proportional to 21,740.70, 32,610.70 and 8,593.19

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Solution

The fourth proportional to 21,740.70, 32,610.70 and 8,593.19 is: 12,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.70 : 32,610.70 = 8,593.19 : x
  2. Step 2: Convert to fraction form
    21,740.70/32,610.70 = 8,593.19/x
  3. Step 3: Cross multiply
    21,740.70x = 32,610.70 × 8,593.19
  4. Step 4: Simplify right side
    21,740.70x = 280,229,911.11
  5. Step 5: Solve for x
    x = 280,229,911.11/21,740.70
  6. Step 6: Final answer
    x = 12,889.64

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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.