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Finding the Fourth Proportional to 18,771,706.08, 25,904,954.40 and 10,187,002.08

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Solution

The fourth proportional to 18,771,706.08, 25,904,954.40 and 10,187,002.08 is: 14,058,062.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771,706.08 : 25,904,954.40 = 10,187,002.08 : x
  2. Step 2: Convert to fraction form
    18,771,706.08/25,904,954.40 = 10,187,002.08/x
  3. Step 3: Cross multiply
    18,771,706.08x = 25,904,954.40 × 10,187,002.08
  4. Step 4: Simplify right side
    18,771,706.08x = 263,893,824,355,105.12
  5. Step 5: Solve for x
    x = 263,893,824,355,105.12/18,771,706.08
  6. Step 6: Final answer
    x = 14,058,062.88

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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.