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Finding the Fourth Proportional to 29,695.75, 40,980.15 and 16,267.49

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Solution

The fourth proportional to 29,695.75, 40,980.15 and 16,267.49 is: 22,449.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,695.75 : 40,980.15 = 16,267.49 : x
  2. Step 2: Convert to fraction form
    29,695.75/40,980.15 = 16,267.49/x
  3. Step 3: Cross multiply
    29,695.75x = 40,980.15 × 16,267.49
  4. Step 4: Simplify right side
    29,695.75x = 666,644,083.35
  5. Step 5: Solve for x
    x = 666,644,083.35/29,695.75
  6. Step 6: Final answer
    x = 22,449.14

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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.