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Finding the Fourth Proportional to 18,614.90, 27,946.04 and 12,068.48

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Solution

The fourth proportional to 18,614.90, 27,946.04 and 12,068.48 is: 18,118.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.90 : 27,946.04 = 12,068.48 : x
  2. Step 2: Convert to fraction form
    18,614.90/27,946.04 = 12,068.48/x
  3. Step 3: Cross multiply
    18,614.90x = 27,946.04 × 12,068.48
  4. Step 4: Simplify right side
    18,614.90x = 337,266,024.75
  5. Step 5: Solve for x
    x = 337,266,024.75/18,614.90
  6. Step 6: Final answer
    x = 18,118.07

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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.