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Finding the Fourth Proportional to 29,681.20, 40,960.52 and 16,252.20

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Solution

The fourth proportional to 29,681.20, 40,960.52 and 16,252.20 is: 22,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,681.20 : 40,960.52 = 16,252.20 : x
  2. Step 2: Convert to fraction form
    29,681.20/40,960.52 = 16,252.20/x
  3. Step 3: Cross multiply
    29,681.20x = 40,960.52 × 16,252.20
  4. Step 4: Simplify right side
    29,681.20x = 665,698,563.14
  5. Step 5: Solve for x
    x = 665,698,563.14/29,681.20
  6. Step 6: Final answer
    x = 22,428.29

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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.