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Finding the Fourth Proportional to 25,976, 38,964.72 and 7,508

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Solution

The fourth proportional to 25,976, 38,964.72 and 7,508 is: 11,262.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,976 : 38,964.72 = 7,508 : x
  2. Step 2: Convert to fraction form
    25,976/38,964.72 = 7,508/x
  3. Step 3: Cross multiply
    25,976x = 38,964.72 × 7,508
  4. Step 4: Simplify right side
    25,976x = 292,547,117.76
  5. Step 5: Solve for x
    x = 292,547,117.76/25,976
  6. Step 6: Final answer
    x = 11,262.21

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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.