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Finding the Fourth Proportional to 18,402,927.20, 25,396,040.40 and 10,672,453.52

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Solution

The fourth proportional to 18,402,927.20, 25,396,040.40 and 10,672,453.52 is: 14,727,986.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402,927.20 : 25,396,040.40 = 10,672,453.52 : x
  2. Step 2: Convert to fraction form
    18,402,927.20/25,396,040.40 = 10,672,453.52/x
  3. Step 3: Cross multiply
    18,402,927.20x = 25,396,040.40 × 10,672,453.52
  4. Step 4: Simplify right side
    18,402,927.20x = 271,038,060,761,042.19
  5. Step 5: Solve for x
    x = 271,038,060,761,042.19/18,402,927.20
  6. Step 6: Final answer
    x = 14,727,986.36

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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.