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Finding the Fourth Proportional to 14,687.70, 22,031.55 and 7,293.30

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Solution

The fourth proportional to 14,687.70, 22,031.55 and 7,293.30 is: 10,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.70 : 22,031.55 = 7,293.30 : x
  2. Step 2: Convert to fraction form
    14,687.70/22,031.55 = 7,293.30/x
  3. Step 3: Cross multiply
    14,687.70x = 22,031.55 × 7,293.30
  4. Step 4: Simplify right side
    14,687.70x = 160,682,703.62
  5. Step 5: Solve for x
    x = 160,682,703.62/14,687.70
  6. Step 6: Final answer
    x = 10,939.95

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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.