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Finding the Fourth Proportional to 18,619,610.82, 25,692,035.10 and 10,359,460.86

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Solution

The fourth proportional to 18,619,610.82, 25,692,035.10 and 10,359,460.86 is: 14,294,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619,610.82 : 25,692,035.10 = 10,359,460.86 : x
  2. Step 2: Convert to fraction form
    18,619,610.82/25,692,035.10 = 10,359,460.86/x
  3. Step 3: Cross multiply
    18,619,610.82x = 25,692,035.10 × 10,359,460.86
  4. Step 4: Simplify right side
    18,619,610.82x = 266,155,632,032,196.19
  5. Step 5: Solve for x
    x = 266,155,632,032,196.19/18,619,610.82
  6. Step 6: Final answer
    x = 14,294,371.38

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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.