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Finding the Fourth Proportional to 29,396.64, 40,567.82 and 15,968.16

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Solution

The fourth proportional to 29,396.64, 40,567.82 and 15,968.16 is: 22,036.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,396.64 : 40,567.82 = 15,968.16 : x
  2. Step 2: Convert to fraction form
    29,396.64/40,567.82 = 15,968.16/x
  3. Step 3: Cross multiply
    29,396.64x = 40,567.82 × 15,968.16
  4. Step 4: Simplify right side
    29,396.64x = 647,793,440.61
  5. Step 5: Solve for x
    x = 647,793,440.61/29,396.64
  6. Step 6: Final answer
    x = 22,036.31

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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.