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Finding the Fourth Proportional to 21,998.60, 32,988.30 and 8,846.60

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Solution

The fourth proportional to 21,998.60, 32,988.30 and 8,846.60 is: 13,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.60 : 32,988.30 = 8,846.60 : x
  2. Step 2: Convert to fraction form
    21,998.60/32,988.30 = 8,846.60/x
  3. Step 3: Cross multiply
    21,998.60x = 32,988.30 × 8,846.60
  4. Step 4: Simplify right side
    21,998.60x = 291,834,294.78
  5. Step 5: Solve for x
    x = 291,834,294.78/21,998.60
  6. Step 6: Final answer
    x = 13,266.04

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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.