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Finding the Fourth Proportional to 19,902.17, 27,465.44 and 10,950.15

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Solution

The fourth proportional to 19,902.17, 27,465.44 and 10,950.15 is: 15,111.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.17 : 27,465.44 = 10,950.15 : x
  2. Step 2: Convert to fraction form
    19,902.17/27,465.44 = 10,950.15/x
  3. Step 3: Cross multiply
    19,902.17x = 27,465.44 × 10,950.15
  4. Step 4: Simplify right side
    19,902.17x = 300,750,687.82
  5. Step 5: Solve for x
    x = 300,750,687.82/19,902.17
  6. Step 6: Final answer
    x = 15,111.45

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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.