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Finding the Fourth Proportional to 19,652.48, 29,479.80 and 5,611.42

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Solution

The fourth proportional to 19,652.48, 29,479.80 and 5,611.42 is: 8,417.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,652.48 : 29,479.80 = 5,611.42 : x
  2. Step 2: Convert to fraction form
    19,652.48/29,479.80 = 5,611.42/x
  3. Step 3: Cross multiply
    19,652.48x = 29,479.80 × 5,611.42
  4. Step 4: Simplify right side
    19,652.48x = 165,423,391.92
  5. Step 5: Solve for x
    x = 165,423,391.92/19,652.48
  6. Step 6: Final answer
    x = 8,417.43

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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.