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Finding the Fourth Proportional to 25,646.72, 38,473.92 and 8,110.72

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Solution

The fourth proportional to 25,646.72, 38,473.92 and 8,110.72 is: 12,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,646.72 : 38,473.92 = 8,110.72 : x
  2. Step 2: Convert to fraction form
    25,646.72/38,473.92 = 8,110.72/x
  3. Step 3: Cross multiply
    25,646.72x = 38,473.92 × 8,110.72
  4. Step 4: Simplify right side
    25,646.72x = 312,051,192.42
  5. Step 5: Solve for x
    x = 312,051,192.42/25,646.72
  6. Step 6: Final answer
    x = 12,167.29

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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.