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Finding the Fourth Proportional to 14,394,483.48, 19,864,018.56 and 7,868,129.88

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Solution

The fourth proportional to 14,394,483.48, 19,864,018.56 and 7,868,129.88 is: 10,857,817.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,394,483.48 : 19,864,018.56 = 7,868,129.88 : x
  2. Step 2: Convert to fraction form
    14,394,483.48/19,864,018.56 = 7,868,129.88/x
  3. Step 3: Cross multiply
    14,394,483.48x = 19,864,018.56 × 7,868,129.88
  4. Step 4: Simplify right side
    14,394,483.48x = 156,292,677,968,810.56
  5. Step 5: Solve for x
    x = 156,292,677,968,810.56/14,394,483.48
  6. Step 6: Final answer
    x = 10,857,817.73

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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.