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Finding the Fourth Proportional to 15,947,601.70, 23,921,402.55 and 15,947,601.70

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Solution

The fourth proportional to 15,947,601.70, 23,921,402.55 and 15,947,601.70 is: 23,921,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,947,601.70 : 23,921,402.55 = 15,947,601.70 : x
  2. Step 2: Convert to fraction form
    15,947,601.70/23,921,402.55 = 15,947,601.70/x
  3. Step 3: Cross multiply
    15,947,601.70x = 23,921,402.55 × 15,947,601.70
  4. Step 4: Simplify right side
    15,947,601.70x = 381,488,999,972,764.31
  5. Step 5: Solve for x
    x = 381,488,999,972,764.31/15,947,601.70
  6. Step 6: Final answer
    x = 23,921,402.55

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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.