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Finding the Fourth Proportional to 54,762.72, 82,144.08 and 21,498.46

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Solution

The fourth proportional to 54,762.72, 82,144.08 and 21,498.46 is: 32,247.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,762.72 : 82,144.08 = 21,498.46 : x
  2. Step 2: Convert to fraction form
    54,762.72/82,144.08 = 21,498.46/x
  3. Step 3: Cross multiply
    54,762.72x = 82,144.08 × 21,498.46
  4. Step 4: Simplify right side
    54,762.72x = 1,765,971,218.12
  5. Step 5: Solve for x
    x = 1,765,971,218.12/54,762.72
  6. Step 6: Final answer
    x = 32,247.69

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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.