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Finding the Fourth Proportional to 29,640.52, 40,904.94 and 16,212.64

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Solution

The fourth proportional to 29,640.52, 40,904.94 and 16,212.64 is: 22,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,640.52 : 40,904.94 = 16,212.64 : x
  2. Step 2: Convert to fraction form
    29,640.52/40,904.94 = 16,212.64/x
  3. Step 3: Cross multiply
    29,640.52x = 40,904.94 × 16,212.64
  4. Step 4: Simplify right side
    29,640.52x = 663,177,066.44
  5. Step 5: Solve for x
    x = 663,177,066.44/29,640.52
  6. Step 6: Final answer
    x = 22,374.00

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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.