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Finding the Fourth Proportional to 18,072,859.81, 24,940,979.84 and 9,813,270.22

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Solution

The fourth proportional to 18,072,859.81, 24,940,979.84 and 9,813,270.22 is: 13,542,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072,859.81 : 24,940,979.84 = 9,813,270.22 : x
  2. Step 2: Convert to fraction form
    18,072,859.81/24,940,979.84 = 9,813,270.22/x
  3. Step 3: Cross multiply
    18,072,859.81x = 24,940,979.84 × 9,813,270.22
  4. Step 4: Simplify right side
    18,072,859.81x = 244,752,574,721,492.38
  5. Step 5: Solve for x
    x = 244,752,574,721,492.38/18,072,859.81
  6. Step 6: Final answer
    x = 13,542,548.18

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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.