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Finding the Fourth Proportional to 22,010.20, 32,966.70 and 8,855.80

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Solution

The fourth proportional to 22,010.20, 32,966.70 and 8,855.80 is: 13,264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,010.20 : 32,966.70 = 8,855.80 : x
  2. Step 2: Convert to fraction form
    22,010.20/32,966.70 = 8,855.80/x
  3. Step 3: Cross multiply
    22,010.20x = 32,966.70 × 8,855.80
  4. Step 4: Simplify right side
    22,010.20x = 291,946,501.86
  5. Step 5: Solve for x
    x = 291,946,501.86/22,010.20
  6. Step 6: Final answer
    x = 13,264.15

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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.