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Finding the Fourth Proportional to 19,525.20, 29,239.20 and 15,637.20

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Solution

The fourth proportional to 19,525.20, 29,239.20 and 15,637.20 is: 23,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,525.20 : 29,239.20 = 15,637.20 : x
  2. Step 2: Convert to fraction form
    19,525.20/29,239.20 = 15,637.20/x
  3. Step 3: Cross multiply
    19,525.20x = 29,239.20 × 15,637.20
  4. Step 4: Simplify right side
    19,525.20x = 457,219,218.24
  5. Step 5: Solve for x
    x = 457,219,218.24/19,525.20
  6. Step 6: Final answer
    x = 23,416.88

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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.