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Finding the Fourth Proportional to 39,489.61, 54,499.08 and 22,499.05

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Solution

The fourth proportional to 39,489.61, 54,499.08 and 22,499.05 is: 31,050.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,489.61 : 54,499.08 = 22,499.05 : x
  2. Step 2: Convert to fraction form
    39,489.61/54,499.08 = 22,499.05/x
  3. Step 3: Cross multiply
    39,489.61x = 54,499.08 × 22,499.05
  4. Step 4: Simplify right side
    39,489.61x = 1,226,177,525.87
  5. Step 5: Solve for x
    x = 1,226,177,525.87/39,489.61
  6. Step 6: Final answer
    x = 31,050.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.