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Finding the Fourth Proportional to 29,636.64, 40,899.60 and 19,573.92

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Solution

The fourth proportional to 29,636.64, 40,899.60 and 19,573.92 is: 27,012.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,636.64 : 40,899.60 = 19,573.92 : x
  2. Step 2: Convert to fraction form
    29,636.64/40,899.60 = 19,573.92/x
  3. Step 3: Cross multiply
    29,636.64x = 40,899.60 × 19,573.92
  4. Step 4: Simplify right side
    29,636.64x = 800,565,498.43
  5. Step 5: Solve for x
    x = 800,565,498.43/29,636.64
  6. Step 6: Final answer
    x = 27,012.69

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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.