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Finding the Fourth Proportional to 19,671,687.60, 27,146,956.80 and 10,850,942.16

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Solution

The fourth proportional to 19,671,687.60, 27,146,956.80 and 10,850,942.16 is: 14,974,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,671,687.60 : 27,146,956.80 = 10,850,942.16 : x
  2. Step 2: Convert to fraction form
    19,671,687.60/27,146,956.80 = 10,850,942.16/x
  3. Step 3: Cross multiply
    19,671,687.60x = 27,146,956.80 × 10,850,942.16
  4. Step 4: Simplify right side
    19,671,687.60x = 294,570,058,056,818.69
  5. Step 5: Solve for x
    x = 294,570,058,056,818.69/19,671,687.60
  6. Step 6: Final answer
    x = 14,974,315.58

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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.