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Finding the Fourth Proportional to 25,286.51, 34,908.51 and 18,472.89

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Solution

The fourth proportional to 25,286.51, 34,908.51 and 18,472.89 is: 25,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.51 : 34,908.51 = 18,472.89 : x
  2. Step 2: Convert to fraction form
    25,286.51/34,908.51 = 18,472.89/x
  3. Step 3: Cross multiply
    25,286.51x = 34,908.51 × 18,472.89
  4. Step 4: Simplify right side
    25,286.51x = 644,860,844.57
  5. Step 5: Solve for x
    x = 644,860,844.57/25,286.51
  6. Step 6: Final answer
    x = 25,502.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.