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Finding the Fourth Proportional to 22,908.16, 34,362.40 and 7,326.40

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Solution

The fourth proportional to 22,908.16, 34,362.40 and 7,326.40 is: 10,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,908.16 : 34,362.40 = 7,326.40 : x
  2. Step 2: Convert to fraction form
    22,908.16/34,362.40 = 7,326.40/x
  3. Step 3: Cross multiply
    22,908.16x = 34,362.40 × 7,326.40
  4. Step 4: Simplify right side
    22,908.16x = 251,752,687.36
  5. Step 5: Solve for x
    x = 251,752,687.36/22,908.16
  6. Step 6: Final answer
    x = 10,989.65

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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.