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Finding the Fourth Proportional to 25,950.94, 38,929.14 and 11,908.58

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Solution

The fourth proportional to 25,950.94, 38,929.14 and 11,908.58 is: 17,864.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,950.94 : 38,929.14 = 11,908.58 : x
  2. Step 2: Convert to fraction form
    25,950.94/38,929.14 = 11,908.58/x
  3. Step 3: Cross multiply
    25,950.94x = 38,929.14 × 11,908.58
  4. Step 4: Simplify right side
    25,950.94x = 463,590,583.38
  5. Step 5: Solve for x
    x = 463,590,583.38/25,950.94
  6. Step 6: Final answer
    x = 17,864.12

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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.