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Finding the Fourth Proportional to 29,690.57, 40,973.11 and 16,261.92

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Solution

The fourth proportional to 29,690.57, 40,973.11 and 16,261.92 is: 22,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,690.57 : 40,973.11 = 16,261.92 : x
  2. Step 2: Convert to fraction form
    29,690.57/40,973.11 = 16,261.92/x
  3. Step 3: Cross multiply
    29,690.57x = 40,973.11 × 16,261.92
  4. Step 4: Simplify right side
    29,690.57x = 666,301,396.32
  5. Step 5: Solve for x
    x = 666,301,396.32/29,690.57
  6. Step 6: Final answer
    x = 22,441.51

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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.