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Finding the Fourth Proportional to 25,606.51, 38,404.90 and 8,071.63

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Solution

The fourth proportional to 25,606.51, 38,404.90 and 8,071.63 is: 12,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,606.51 : 38,404.90 = 8,071.63 : x
  2. Step 2: Convert to fraction form
    25,606.51/38,404.90 = 8,071.63/x
  3. Step 3: Cross multiply
    25,606.51x = 38,404.90 × 8,071.63
  4. Step 4: Simplify right side
    25,606.51x = 309,990,142.99
  5. Step 5: Solve for x
    x = 309,990,142.99/25,606.51
  6. Step 6: Final answer
    x = 12,105.91

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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.