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Finding the Fourth Proportional to 16,978,697.60, 23,426,969.92 and 10,101,836.48

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Solution

The fourth proportional to 16,978,697.60, 23,426,969.92 and 10,101,836.48 is: 13,938,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,978,697.60 : 23,426,969.92 = 10,101,836.48 : x
  2. Step 2: Convert to fraction form
    16,978,697.60/23,426,969.92 = 10,101,836.48/x
  3. Step 3: Cross multiply
    16,978,697.60x = 23,426,969.92 × 10,101,836.48
  4. Step 4: Simplify right side
    16,978,697.60x = 236,655,419,353,718.72
  5. Step 5: Solve for x
    x = 236,655,419,353,718.72/16,978,697.60
  6. Step 6: Final answer
    x = 13,938,372.95

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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.