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Finding the Fourth Proportional to 19,933.80, 29,900.70 and 16,726.20

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Solution

The fourth proportional to 19,933.80, 29,900.70 and 16,726.20 is: 25,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,933.80 : 29,900.70 = 16,726.20 : x
  2. Step 2: Convert to fraction form
    19,933.80/29,900.70 = 16,726.20/x
  3. Step 3: Cross multiply
    19,933.80x = 29,900.70 × 16,726.20
  4. Step 4: Simplify right side
    19,933.80x = 500,125,088.34
  5. Step 5: Solve for x
    x = 500,125,088.34/19,933.80
  6. Step 6: Final answer
    x = 25,089.30

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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.