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Finding the Fourth Proportional to 29,643.52, 40,908.08 and 16,214.56

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Solution

The fourth proportional to 29,643.52, 40,908.08 and 16,214.56 is: 22,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,643.52 : 40,908.08 = 16,214.56 : x
  2. Step 2: Convert to fraction form
    29,643.52/40,908.08 = 16,214.56/x
  3. Step 3: Cross multiply
    29,643.52x = 40,908.08 × 16,214.56
  4. Step 4: Simplify right side
    29,643.52x = 663,306,517.64
  5. Step 5: Solve for x
    x = 663,306,517.64/29,643.52
  6. Step 6: Final answer
    x = 22,376.11

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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.