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Finding the Fourth Proportional to 15,017.20, 22,525.80 and 14,045.20

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Solution

The fourth proportional to 15,017.20, 22,525.80 and 14,045.20 is: 21,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.20 : 22,525.80 = 14,045.20 : x
  2. Step 2: Convert to fraction form
    15,017.20/22,525.80 = 14,045.20/x
  3. Step 3: Cross multiply
    15,017.20x = 22,525.80 × 14,045.20
  4. Step 4: Simplify right side
    15,017.20x = 316,379,366.16
  5. Step 5: Solve for x
    x = 316,379,366.16/15,017.20
  6. Step 6: Final answer
    x = 21,067.80

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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.