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Finding the Fourth Proportional to 38,601.40, 57,904.80 and 16,412.28

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Solution

The fourth proportional to 38,601.40, 57,904.80 and 16,412.28 is: 24,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,601.40 : 57,904.80 = 16,412.28 : x
  2. Step 2: Convert to fraction form
    38,601.40/57,904.80 = 16,412.28/x
  3. Step 3: Cross multiply
    38,601.40x = 57,904.80 × 16,412.28
  4. Step 4: Simplify right side
    38,601.40x = 950,349,790.94
  5. Step 5: Solve for x
    x = 950,349,790.94/38,601.40
  6. Step 6: Final answer
    x = 24,619.57

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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.