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Finding the Fourth Proportional to 19,546.40, 29,384.40 and 16,695.20

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Solution

The fourth proportional to 19,546.40, 29,384.40 and 16,695.20 is: 25,098.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,546.40 : 29,384.40 = 16,695.20 : x
  2. Step 2: Convert to fraction form
    19,546.40/29,384.40 = 16,695.20/x
  3. Step 3: Cross multiply
    19,546.40x = 29,384.40 × 16,695.20
  4. Step 4: Simplify right side
    19,546.40x = 490,578,434.88
  5. Step 5: Solve for x
    x = 490,578,434.88/19,546.40
  6. Step 6: Final answer
    x = 25,098.15

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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.