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Finding the Fourth Proportional to 60,446.20, 90,699.10 and 27,189.80

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Solution

The fourth proportional to 60,446.20, 90,699.10 and 27,189.80 is: 40,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,446.20 : 90,699.10 = 27,189.80 : x
  2. Step 2: Convert to fraction form
    60,446.20/90,699.10 = 27,189.80/x
  3. Step 3: Cross multiply
    60,446.20x = 90,699.10 × 27,189.80
  4. Step 4: Simplify right side
    60,446.20x = 2,466,090,389.18
  5. Step 5: Solve for x
    x = 2,466,090,389.18/60,446.20
  6. Step 6: Final answer
    x = 40,798.10

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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.