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Finding the Fourth Proportional to 10,692,764.40, 16,003,717.20 and 9,842,458.80

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Solution

The fourth proportional to 10,692,764.40, 16,003,717.20 and 9,842,458.80 is: 14,731,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,692,764.40 : 16,003,717.20 = 9,842,458.80 : x
  2. Step 2: Convert to fraction form
    10,692,764.40/16,003,717.20 = 9,842,458.80/x
  3. Step 3: Cross multiply
    10,692,764.40x = 16,003,717.20 × 9,842,458.80
  4. Step 4: Simplify right side
    10,692,764.40x = 157,515,927,187,851.38
  5. Step 5: Solve for x
    x = 157,515,927,187,851.38/10,692,764.40
  6. Step 6: Final answer
    x = 14,731,076.20

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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.