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Finding the Fourth Proportional to 18,443,769.90, 27,615,888.45 and 18,443,769.90

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Solution

The fourth proportional to 18,443,769.90, 27,615,888.45 and 18,443,769.90 is: 27,615,888.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443,769.90 : 27,615,888.45 = 18,443,769.90 : x
  2. Step 2: Convert to fraction form
    18,443,769.90/27,615,888.45 = 18,443,769.90/x
  3. Step 3: Cross multiply
    18,443,769.90x = 27,615,888.45 × 18,443,769.90
  4. Step 4: Simplify right side
    18,443,769.90x = 509,341,092,155,867.62
  5. Step 5: Solve for x
    x = 509,341,092,155,867.62/18,443,769.90
  6. Step 6: Final answer
    x = 27,615,888.45

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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.