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Finding the Fourth Proportional to 11,897.53, 17,950.18 and 11,864.73

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Solution

The fourth proportional to 11,897.53, 17,950.18 and 11,864.73 is: 17,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.53 : 17,950.18 = 11,864.73 : x
  2. Step 2: Convert to fraction form
    11,897.53/17,950.18 = 11,864.73/x
  3. Step 3: Cross multiply
    11,897.53x = 17,950.18 × 11,864.73
  4. Step 4: Simplify right side
    11,897.53x = 212,973,949.40
  5. Step 5: Solve for x
    x = 212,973,949.40/11,897.53
  6. Step 6: Final answer
    x = 17,900.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.