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Finding the Fourth Proportional to 19,562.64, 29,373.12 and 13,730.64

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Solution

The fourth proportional to 19,562.64, 29,373.12 and 13,730.64 is: 20,616.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,562.64 : 29,373.12 = 13,730.64 : x
  2. Step 2: Convert to fraction form
    19,562.64/29,373.12 = 13,730.64/x
  3. Step 3: Cross multiply
    19,562.64x = 29,373.12 × 13,730.64
  4. Step 4: Simplify right side
    19,562.64x = 403,311,736.40
  5. Step 5: Solve for x
    x = 403,311,736.40/19,562.64
  6. Step 6: Final answer
    x = 20,616.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.